1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 /* ethtool support for i40e */ 5 6 #include "i40e.h" 7 #include "i40e_diag.h" 8 #include "i40e_txrx_common.h" 9 10 /* ethtool statistics helpers */ 11 12 /** 13 * struct i40e_stats - definition for an ethtool statistic 14 * @stat_string: statistic name to display in ethtool -S output 15 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 16 * @stat_offset: offsetof() the stat from a base pointer 17 * 18 * This structure defines a statistic to be added to the ethtool stats buffer. 19 * It defines a statistic as offset from a common base pointer. Stats should 20 * be defined in constant arrays using the I40E_STAT macro, with every element 21 * of the array using the same _type for calculating the sizeof_stat and 22 * stat_offset. 23 * 24 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 25 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 26 * the i40e_add_ethtool_stat() helper function. 27 * 28 * The @stat_string is interpreted as a format string, allowing formatted 29 * values to be inserted while looping over multiple structures for a given 30 * statistics array. Thus, every statistic string in an array should have the 31 * same type and number of format specifiers, to be formatted by variadic 32 * arguments to the i40e_add_stat_string() helper function. 33 **/ 34 struct i40e_stats { 35 char stat_string[ETH_GSTRING_LEN]; 36 int sizeof_stat; 37 int stat_offset; 38 }; 39 40 /* Helper macro to define an i40e_stat structure with proper size and type. 41 * Use this when defining constant statistics arrays. Note that @_type expects 42 * only a type name and is used multiple times. 43 */ 44 #define I40E_STAT(_type, _name, _stat) { \ 45 .stat_string = _name, \ 46 .sizeof_stat = sizeof_field(_type, _stat), \ 47 .stat_offset = offsetof(_type, _stat) \ 48 } 49 50 /* Helper macro for defining some statistics directly copied from the netdev 51 * stats structure. 52 */ 53 #define I40E_NETDEV_STAT(_net_stat) \ 54 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 55 56 /* Helper macro for defining some statistics related to queues */ 57 #define I40E_QUEUE_STAT(_name, _stat) \ 58 I40E_STAT(struct i40e_ring, _name, _stat) 59 60 /* Stats associated with a Tx or Rx ring */ 61 static const struct i40e_stats i40e_gstrings_queue_stats[] = { 62 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 63 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 64 }; 65 66 /** 67 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 68 * @data: location to store the stat value 69 * @pointer: basis for where to copy from 70 * @stat: the stat definition 71 * 72 * Copies the stat data defined by the pointer and stat structure pair into 73 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 74 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 75 */ 76 static void 77 i40e_add_one_ethtool_stat(u64 *data, void *pointer, 78 const struct i40e_stats *stat) 79 { 80 char *p; 81 82 if (!pointer) { 83 /* ensure that the ethtool data buffer is zero'd for any stats 84 * which don't have a valid pointer. 85 */ 86 *data = 0; 87 return; 88 } 89 90 p = (char *)pointer + stat->stat_offset; 91 switch (stat->sizeof_stat) { 92 case sizeof(u64): 93 *data = *((u64 *)p); 94 break; 95 case sizeof(u32): 96 *data = *((u32 *)p); 97 break; 98 case sizeof(u16): 99 *data = *((u16 *)p); 100 break; 101 case sizeof(u8): 102 *data = *((u8 *)p); 103 break; 104 default: 105 WARN_ONCE(1, "unexpected stat size for %s", 106 stat->stat_string); 107 *data = 0; 108 } 109 } 110 111 /** 112 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 113 * @data: ethtool stats buffer 114 * @pointer: location to copy stats from 115 * @stats: array of stats to copy 116 * @size: the size of the stats definition 117 * 118 * Copy the stats defined by the stats array using the pointer as a base into 119 * the data buffer supplied by ethtool. Updates the data pointer to point to 120 * the next empty location for successive calls to __i40e_add_ethtool_stats. 121 * If pointer is null, set the data values to zero and update the pointer to 122 * skip these stats. 123 **/ 124 static void 125 __i40e_add_ethtool_stats(u64 **data, void *pointer, 126 const struct i40e_stats stats[], 127 const unsigned int size) 128 { 129 unsigned int i; 130 131 for (i = 0; i < size; i++) 132 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 133 } 134 135 /** 136 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 137 * @data: ethtool stats buffer 138 * @pointer: location where stats are stored 139 * @stats: static const array of stat definitions 140 * 141 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 142 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 143 * ensuring that we pass the size associated with the given stats array. 144 * 145 * The parameter @stats is evaluated twice, so parameters with side effects 146 * should be avoided. 147 **/ 148 #define i40e_add_ethtool_stats(data, pointer, stats) \ 149 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 150 151 /** 152 * i40e_add_queue_stats - copy queue statistics into supplied buffer 153 * @data: ethtool stats buffer 154 * @ring: the ring to copy 155 * 156 * Queue statistics must be copied while protected by 157 * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats. 158 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 159 * ring pointer is null, zero out the queue stat values and update the data 160 * pointer. Otherwise safely copy the stats from the ring into the supplied 161 * buffer and update the data pointer when finished. 162 * 163 * This function expects to be called while under rcu_read_lock(). 164 **/ 165 static void 166 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 167 { 168 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 169 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 170 unsigned int start; 171 unsigned int i; 172 173 /* To avoid invalid statistics values, ensure that we keep retrying 174 * the copy until we get a consistent value according to 175 * u64_stats_fetch_retry_irq. But first, make sure our ring is 176 * non-null before attempting to access its syncp. 177 */ 178 do { 179 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp); 180 for (i = 0; i < size; i++) { 181 i40e_add_one_ethtool_stat(&(*data)[i], ring, 182 &stats[i]); 183 } 184 } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start)); 185 186 /* Once we successfully copy the stats in, update the data pointer */ 187 *data += size; 188 } 189 190 /** 191 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 192 * @p: ethtool supplied buffer 193 * @stats: stat definitions array 194 * @size: size of the stats array 195 * 196 * Format and copy the strings described by stats into the buffer pointed at 197 * by p. 198 **/ 199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 200 const unsigned int size, ...) 201 { 202 unsigned int i; 203 204 for (i = 0; i < size; i++) { 205 va_list args; 206 207 va_start(args, size); 208 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 209 *p += ETH_GSTRING_LEN; 210 va_end(args); 211 } 212 } 213 214 /** 215 * 40e_add_stat_strings - copy stat strings into ethtool buffer 216 * @p: ethtool supplied buffer 217 * @stats: stat definitions array 218 * 219 * Format and copy the strings described by the const static stats value into 220 * the buffer pointed at by p. 221 * 222 * The parameter @stats is evaluated twice, so parameters with side effects 223 * should be avoided. Additionally, stats must be an array such that 224 * ARRAY_SIZE can be called on it. 225 **/ 226 #define i40e_add_stat_strings(p, stats, ...) \ 227 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 228 229 #define I40E_PF_STAT(_name, _stat) \ 230 I40E_STAT(struct i40e_pf, _name, _stat) 231 #define I40E_VSI_STAT(_name, _stat) \ 232 I40E_STAT(struct i40e_vsi, _name, _stat) 233 #define I40E_VEB_STAT(_name, _stat) \ 234 I40E_STAT(struct i40e_veb, _name, _stat) 235 #define I40E_PFC_STAT(_name, _stat) \ 236 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 237 #define I40E_QUEUE_STAT(_name, _stat) \ 238 I40E_STAT(struct i40e_ring, _name, _stat) 239 240 static const struct i40e_stats i40e_gstrings_net_stats[] = { 241 I40E_NETDEV_STAT(rx_packets), 242 I40E_NETDEV_STAT(tx_packets), 243 I40E_NETDEV_STAT(rx_bytes), 244 I40E_NETDEV_STAT(tx_bytes), 245 I40E_NETDEV_STAT(rx_errors), 246 I40E_NETDEV_STAT(tx_errors), 247 I40E_NETDEV_STAT(rx_dropped), 248 I40E_NETDEV_STAT(tx_dropped), 249 I40E_NETDEV_STAT(collisions), 250 I40E_NETDEV_STAT(rx_length_errors), 251 I40E_NETDEV_STAT(rx_crc_errors), 252 }; 253 254 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 255 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 256 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 257 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 258 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 259 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 260 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 261 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 262 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 263 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 264 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 265 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 266 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 267 }; 268 269 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 270 I40E_VEB_STAT("veb.tc_%u_tx_packets", tc_stats.tc_tx_packets), 271 I40E_VEB_STAT("veb.tc_%u_tx_bytes", tc_stats.tc_tx_bytes), 272 I40E_VEB_STAT("veb.tc_%u_rx_packets", tc_stats.tc_rx_packets), 273 I40E_VEB_STAT("veb.tc_%u_rx_bytes", tc_stats.tc_rx_bytes), 274 }; 275 276 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 277 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 278 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 279 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 280 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 281 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 282 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 283 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 284 I40E_VSI_STAT("tx_linearize", tx_linearize), 285 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 286 I40E_VSI_STAT("tx_busy", tx_busy), 287 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 288 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 289 }; 290 291 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 292 * but they are separate. This device supports Virtualization, and 293 * as such might have several netdevs supporting VMDq and FCoE going 294 * through a single port. The NETDEV_STATs are for individual netdevs 295 * seen at the top of the stack, and the PF_STATs are for the physical 296 * function at the bottom of the stack hosting those netdevs. 297 * 298 * The PF_STATs are appended to the netdev stats only when ethtool -S 299 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 300 */ 301 static const struct i40e_stats i40e_gstrings_stats[] = { 302 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 303 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 304 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 305 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 306 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 307 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 308 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 309 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 310 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 311 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 312 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 313 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 314 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 315 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 316 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 317 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 318 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 319 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 320 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 321 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 322 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 323 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 324 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 325 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 326 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 327 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 328 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 329 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 330 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 331 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 332 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 333 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 334 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 335 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 336 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 337 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 338 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 339 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 340 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 341 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 342 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 343 I40E_PF_STAT("port.arq_overflows", arq_overflows), 344 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 345 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 346 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 347 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 348 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 349 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 350 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 351 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 352 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 353 354 /* LPI stats */ 355 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 356 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 357 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 358 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 359 }; 360 361 struct i40e_pfc_stats { 362 u64 priority_xon_rx; 363 u64 priority_xoff_rx; 364 u64 priority_xon_tx; 365 u64 priority_xoff_tx; 366 u64 priority_xon_2_xoff; 367 }; 368 369 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 370 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 371 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 372 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 373 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 374 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 375 }; 376 377 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 378 379 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 380 381 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 382 383 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 384 I40E_MAX_USER_PRIORITY) 385 386 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 387 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 388 I40E_MAX_TRAFFIC_CLASS)) 389 390 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 391 392 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 393 I40E_PFC_STATS_LEN + \ 394 I40E_VEB_STATS_LEN + \ 395 I40E_VSI_STATS_LEN) 396 397 /* Length of stats for a single queue */ 398 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 399 400 enum i40e_ethtool_test_id { 401 I40E_ETH_TEST_REG = 0, 402 I40E_ETH_TEST_EEPROM, 403 I40E_ETH_TEST_INTR, 404 I40E_ETH_TEST_LINK, 405 }; 406 407 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 408 "Register test (offline)", 409 "Eeprom test (offline)", 410 "Interrupt test (offline)", 411 "Link test (on/offline)" 412 }; 413 414 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 415 416 struct i40e_priv_flags { 417 char flag_string[ETH_GSTRING_LEN]; 418 u64 flag; 419 bool read_only; 420 }; 421 422 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 423 .flag_string = _name, \ 424 .flag = _flag, \ 425 .read_only = _read_only, \ 426 } 427 428 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 429 /* NOTE: MFP setting cannot be changed */ 430 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 431 I40E_PRIV_FLAG("total-port-shutdown", 432 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), 433 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 434 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 435 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 436 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 437 I40E_PRIV_FLAG("link-down-on-close", 438 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 439 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 440 I40E_PRIV_FLAG("disable-source-pruning", 441 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 442 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 443 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 444 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 445 }; 446 447 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 448 449 /* Private flags with a global effect, restricted to PF 0 */ 450 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 451 I40E_PRIV_FLAG("vf-true-promisc-support", 452 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 453 }; 454 455 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 456 457 /** 458 * i40e_partition_setting_complaint - generic complaint for MFP restriction 459 * @pf: the PF struct 460 **/ 461 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 462 { 463 dev_info(&pf->pdev->dev, 464 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n"); 465 } 466 467 /** 468 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 469 * @pf: PF struct with phy_types 470 * @ks: ethtool link ksettings struct to fill out 471 * 472 **/ 473 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 474 struct ethtool_link_ksettings *ks) 475 { 476 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 477 u64 phy_types = pf->hw.phy.phy_types; 478 479 ethtool_link_ksettings_zero_link_mode(ks, supported); 480 ethtool_link_ksettings_zero_link_mode(ks, advertising); 481 482 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 483 ethtool_link_ksettings_add_link_mode(ks, supported, 484 1000baseT_Full); 485 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 486 ethtool_link_ksettings_add_link_mode(ks, advertising, 487 1000baseT_Full); 488 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 489 ethtool_link_ksettings_add_link_mode(ks, supported, 490 100baseT_Full); 491 ethtool_link_ksettings_add_link_mode(ks, advertising, 492 100baseT_Full); 493 } 494 } 495 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 496 phy_types & I40E_CAP_PHY_TYPE_XFI || 497 phy_types & I40E_CAP_PHY_TYPE_SFI || 498 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 499 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 500 ethtool_link_ksettings_add_link_mode(ks, supported, 501 10000baseT_Full); 502 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 503 ethtool_link_ksettings_add_link_mode(ks, advertising, 504 10000baseT_Full); 505 } 506 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 507 ethtool_link_ksettings_add_link_mode(ks, supported, 508 10000baseT_Full); 509 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 510 ethtool_link_ksettings_add_link_mode(ks, advertising, 511 10000baseT_Full); 512 } 513 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 514 ethtool_link_ksettings_add_link_mode(ks, supported, 515 2500baseT_Full); 516 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 517 ethtool_link_ksettings_add_link_mode(ks, advertising, 518 2500baseT_Full); 519 } 520 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 521 ethtool_link_ksettings_add_link_mode(ks, supported, 522 5000baseT_Full); 523 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 524 ethtool_link_ksettings_add_link_mode(ks, advertising, 525 5000baseT_Full); 526 } 527 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 528 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 529 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 530 ethtool_link_ksettings_add_link_mode(ks, supported, 531 40000baseCR4_Full); 532 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 533 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 534 ethtool_link_ksettings_add_link_mode(ks, supported, 535 40000baseCR4_Full); 536 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 537 ethtool_link_ksettings_add_link_mode(ks, advertising, 538 40000baseCR4_Full); 539 } 540 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 541 ethtool_link_ksettings_add_link_mode(ks, supported, 542 100baseT_Full); 543 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 544 ethtool_link_ksettings_add_link_mode(ks, advertising, 545 100baseT_Full); 546 } 547 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 548 ethtool_link_ksettings_add_link_mode(ks, supported, 549 1000baseT_Full); 550 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 551 ethtool_link_ksettings_add_link_mode(ks, advertising, 552 1000baseT_Full); 553 } 554 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 555 ethtool_link_ksettings_add_link_mode(ks, supported, 556 40000baseSR4_Full); 557 ethtool_link_ksettings_add_link_mode(ks, advertising, 558 40000baseSR4_Full); 559 } 560 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 561 ethtool_link_ksettings_add_link_mode(ks, supported, 562 40000baseLR4_Full); 563 ethtool_link_ksettings_add_link_mode(ks, advertising, 564 40000baseLR4_Full); 565 } 566 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 567 ethtool_link_ksettings_add_link_mode(ks, supported, 568 40000baseKR4_Full); 569 ethtool_link_ksettings_add_link_mode(ks, advertising, 570 40000baseKR4_Full); 571 } 572 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 573 ethtool_link_ksettings_add_link_mode(ks, supported, 574 20000baseKR2_Full); 575 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 576 ethtool_link_ksettings_add_link_mode(ks, advertising, 577 20000baseKR2_Full); 578 } 579 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 580 ethtool_link_ksettings_add_link_mode(ks, supported, 581 10000baseKX4_Full); 582 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 583 ethtool_link_ksettings_add_link_mode(ks, advertising, 584 10000baseKX4_Full); 585 } 586 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 587 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 588 ethtool_link_ksettings_add_link_mode(ks, supported, 589 10000baseKR_Full); 590 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 591 ethtool_link_ksettings_add_link_mode(ks, advertising, 592 10000baseKR_Full); 593 } 594 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 595 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 596 ethtool_link_ksettings_add_link_mode(ks, supported, 597 1000baseKX_Full); 598 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 599 ethtool_link_ksettings_add_link_mode(ks, advertising, 600 1000baseKX_Full); 601 } 602 /* need to add 25G PHY types */ 603 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 604 ethtool_link_ksettings_add_link_mode(ks, supported, 605 25000baseKR_Full); 606 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 607 ethtool_link_ksettings_add_link_mode(ks, advertising, 608 25000baseKR_Full); 609 } 610 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 611 ethtool_link_ksettings_add_link_mode(ks, supported, 612 25000baseCR_Full); 613 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 614 ethtool_link_ksettings_add_link_mode(ks, advertising, 615 25000baseCR_Full); 616 } 617 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 618 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 619 ethtool_link_ksettings_add_link_mode(ks, supported, 620 25000baseSR_Full); 621 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 622 ethtool_link_ksettings_add_link_mode(ks, advertising, 623 25000baseSR_Full); 624 } 625 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 626 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 627 ethtool_link_ksettings_add_link_mode(ks, supported, 628 25000baseCR_Full); 629 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 630 ethtool_link_ksettings_add_link_mode(ks, advertising, 631 25000baseCR_Full); 632 } 633 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 634 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 636 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 637 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 638 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 639 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 640 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 641 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 642 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 643 ethtool_link_ksettings_add_link_mode(ks, advertising, 644 FEC_NONE); 645 ethtool_link_ksettings_add_link_mode(ks, advertising, 646 FEC_RS); 647 ethtool_link_ksettings_add_link_mode(ks, advertising, 648 FEC_BASER); 649 } 650 } 651 /* need to add new 10G PHY types */ 652 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 653 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 654 ethtool_link_ksettings_add_link_mode(ks, supported, 655 10000baseCR_Full); 656 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 657 ethtool_link_ksettings_add_link_mode(ks, advertising, 658 10000baseCR_Full); 659 } 660 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 661 ethtool_link_ksettings_add_link_mode(ks, supported, 662 10000baseSR_Full); 663 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 664 ethtool_link_ksettings_add_link_mode(ks, advertising, 665 10000baseSR_Full); 666 } 667 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 668 ethtool_link_ksettings_add_link_mode(ks, supported, 669 10000baseLR_Full); 670 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 671 ethtool_link_ksettings_add_link_mode(ks, advertising, 672 10000baseLR_Full); 673 } 674 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 675 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 676 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 677 ethtool_link_ksettings_add_link_mode(ks, supported, 678 1000baseX_Full); 679 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 680 ethtool_link_ksettings_add_link_mode(ks, advertising, 681 1000baseX_Full); 682 } 683 /* Autoneg PHY types */ 684 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 685 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 686 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 687 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 688 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 689 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 690 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 691 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 692 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 693 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 694 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 695 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 696 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 697 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 698 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 699 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 700 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 701 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 702 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 703 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 704 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 705 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 706 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 707 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 708 ethtool_link_ksettings_add_link_mode(ks, supported, 709 Autoneg); 710 ethtool_link_ksettings_add_link_mode(ks, advertising, 711 Autoneg); 712 } 713 } 714 715 /** 716 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 717 * @req_fec_info: mask request FEC info 718 * @ks: ethtool ksettings to fill in 719 **/ 720 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 721 struct ethtool_link_ksettings *ks) 722 { 723 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 724 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 725 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 726 727 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 728 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 729 ethtool_link_ksettings_add_link_mode(ks, advertising, 730 FEC_NONE); 731 ethtool_link_ksettings_add_link_mode(ks, advertising, 732 FEC_BASER); 733 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 734 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 735 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 736 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 737 ethtool_link_ksettings_add_link_mode(ks, advertising, 738 FEC_BASER); 739 } else { 740 ethtool_link_ksettings_add_link_mode(ks, advertising, 741 FEC_NONE); 742 } 743 } 744 745 /** 746 * i40e_get_settings_link_up - Get the Link settings for when link is up 747 * @hw: hw structure 748 * @ks: ethtool ksettings to fill in 749 * @netdev: network interface device structure 750 * @pf: pointer to physical function struct 751 **/ 752 static void i40e_get_settings_link_up(struct i40e_hw *hw, 753 struct ethtool_link_ksettings *ks, 754 struct net_device *netdev, 755 struct i40e_pf *pf) 756 { 757 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 758 struct ethtool_link_ksettings cap_ksettings; 759 u32 link_speed = hw_link_info->link_speed; 760 761 /* Initialize supported and advertised settings based on phy settings */ 762 switch (hw_link_info->phy_type) { 763 case I40E_PHY_TYPE_40GBASE_CR4: 764 case I40E_PHY_TYPE_40GBASE_CR4_CU: 765 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 766 ethtool_link_ksettings_add_link_mode(ks, supported, 767 40000baseCR4_Full); 768 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 769 ethtool_link_ksettings_add_link_mode(ks, advertising, 770 40000baseCR4_Full); 771 break; 772 case I40E_PHY_TYPE_XLAUI: 773 case I40E_PHY_TYPE_XLPPI: 774 case I40E_PHY_TYPE_40GBASE_AOC: 775 ethtool_link_ksettings_add_link_mode(ks, supported, 776 40000baseCR4_Full); 777 ethtool_link_ksettings_add_link_mode(ks, advertising, 778 40000baseCR4_Full); 779 break; 780 case I40E_PHY_TYPE_40GBASE_SR4: 781 ethtool_link_ksettings_add_link_mode(ks, supported, 782 40000baseSR4_Full); 783 ethtool_link_ksettings_add_link_mode(ks, advertising, 784 40000baseSR4_Full); 785 break; 786 case I40E_PHY_TYPE_40GBASE_LR4: 787 ethtool_link_ksettings_add_link_mode(ks, supported, 788 40000baseLR4_Full); 789 ethtool_link_ksettings_add_link_mode(ks, advertising, 790 40000baseLR4_Full); 791 break; 792 case I40E_PHY_TYPE_25GBASE_SR: 793 case I40E_PHY_TYPE_25GBASE_LR: 794 case I40E_PHY_TYPE_10GBASE_SR: 795 case I40E_PHY_TYPE_10GBASE_LR: 796 case I40E_PHY_TYPE_1000BASE_SX: 797 case I40E_PHY_TYPE_1000BASE_LX: 798 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 799 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 800 ethtool_link_ksettings_add_link_mode(ks, supported, 801 25000baseSR_Full); 802 ethtool_link_ksettings_add_link_mode(ks, advertising, 803 25000baseSR_Full); 804 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 805 ethtool_link_ksettings_add_link_mode(ks, supported, 806 10000baseSR_Full); 807 ethtool_link_ksettings_add_link_mode(ks, advertising, 808 10000baseSR_Full); 809 ethtool_link_ksettings_add_link_mode(ks, supported, 810 10000baseLR_Full); 811 ethtool_link_ksettings_add_link_mode(ks, advertising, 812 10000baseLR_Full); 813 ethtool_link_ksettings_add_link_mode(ks, supported, 814 1000baseX_Full); 815 ethtool_link_ksettings_add_link_mode(ks, advertising, 816 1000baseX_Full); 817 ethtool_link_ksettings_add_link_mode(ks, supported, 818 10000baseT_Full); 819 if (hw_link_info->module_type[2] & 820 I40E_MODULE_TYPE_1000BASE_SX || 821 hw_link_info->module_type[2] & 822 I40E_MODULE_TYPE_1000BASE_LX) { 823 ethtool_link_ksettings_add_link_mode(ks, supported, 824 1000baseT_Full); 825 if (hw_link_info->requested_speeds & 826 I40E_LINK_SPEED_1GB) 827 ethtool_link_ksettings_add_link_mode( 828 ks, advertising, 1000baseT_Full); 829 } 830 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 831 ethtool_link_ksettings_add_link_mode(ks, advertising, 832 10000baseT_Full); 833 break; 834 case I40E_PHY_TYPE_10GBASE_T: 835 case I40E_PHY_TYPE_5GBASE_T: 836 case I40E_PHY_TYPE_2_5GBASE_T: 837 case I40E_PHY_TYPE_1000BASE_T: 838 case I40E_PHY_TYPE_100BASE_TX: 839 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 840 ethtool_link_ksettings_add_link_mode(ks, supported, 841 10000baseT_Full); 842 ethtool_link_ksettings_add_link_mode(ks, supported, 843 5000baseT_Full); 844 ethtool_link_ksettings_add_link_mode(ks, supported, 845 2500baseT_Full); 846 ethtool_link_ksettings_add_link_mode(ks, supported, 847 1000baseT_Full); 848 ethtool_link_ksettings_add_link_mode(ks, supported, 849 100baseT_Full); 850 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 851 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 852 ethtool_link_ksettings_add_link_mode(ks, advertising, 853 10000baseT_Full); 854 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 855 ethtool_link_ksettings_add_link_mode(ks, advertising, 856 5000baseT_Full); 857 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 858 ethtool_link_ksettings_add_link_mode(ks, advertising, 859 2500baseT_Full); 860 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 861 ethtool_link_ksettings_add_link_mode(ks, advertising, 862 1000baseT_Full); 863 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 864 ethtool_link_ksettings_add_link_mode(ks, advertising, 865 100baseT_Full); 866 break; 867 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 868 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 869 ethtool_link_ksettings_add_link_mode(ks, supported, 870 1000baseT_Full); 871 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 872 ethtool_link_ksettings_add_link_mode(ks, advertising, 873 1000baseT_Full); 874 break; 875 case I40E_PHY_TYPE_10GBASE_CR1_CU: 876 case I40E_PHY_TYPE_10GBASE_CR1: 877 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 878 ethtool_link_ksettings_add_link_mode(ks, supported, 879 10000baseT_Full); 880 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 10000baseT_Full); 883 break; 884 case I40E_PHY_TYPE_XAUI: 885 case I40E_PHY_TYPE_XFI: 886 case I40E_PHY_TYPE_SFI: 887 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 888 case I40E_PHY_TYPE_10GBASE_AOC: 889 ethtool_link_ksettings_add_link_mode(ks, supported, 890 10000baseT_Full); 891 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 892 ethtool_link_ksettings_add_link_mode(ks, advertising, 893 10000baseT_Full); 894 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 895 break; 896 case I40E_PHY_TYPE_SGMII: 897 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 898 ethtool_link_ksettings_add_link_mode(ks, supported, 899 1000baseT_Full); 900 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 901 ethtool_link_ksettings_add_link_mode(ks, advertising, 902 1000baseT_Full); 903 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 904 ethtool_link_ksettings_add_link_mode(ks, supported, 905 100baseT_Full); 906 if (hw_link_info->requested_speeds & 907 I40E_LINK_SPEED_100MB) 908 ethtool_link_ksettings_add_link_mode( 909 ks, advertising, 100baseT_Full); 910 } 911 break; 912 case I40E_PHY_TYPE_40GBASE_KR4: 913 case I40E_PHY_TYPE_25GBASE_KR: 914 case I40E_PHY_TYPE_20GBASE_KR2: 915 case I40E_PHY_TYPE_10GBASE_KR: 916 case I40E_PHY_TYPE_10GBASE_KX4: 917 case I40E_PHY_TYPE_1000BASE_KX: 918 ethtool_link_ksettings_add_link_mode(ks, supported, 919 40000baseKR4_Full); 920 ethtool_link_ksettings_add_link_mode(ks, supported, 921 25000baseKR_Full); 922 ethtool_link_ksettings_add_link_mode(ks, supported, 923 20000baseKR2_Full); 924 ethtool_link_ksettings_add_link_mode(ks, supported, 925 10000baseKR_Full); 926 ethtool_link_ksettings_add_link_mode(ks, supported, 927 10000baseKX4_Full); 928 ethtool_link_ksettings_add_link_mode(ks, supported, 929 1000baseKX_Full); 930 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 931 ethtool_link_ksettings_add_link_mode(ks, advertising, 932 40000baseKR4_Full); 933 ethtool_link_ksettings_add_link_mode(ks, advertising, 934 25000baseKR_Full); 935 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 936 ethtool_link_ksettings_add_link_mode(ks, advertising, 937 20000baseKR2_Full); 938 ethtool_link_ksettings_add_link_mode(ks, advertising, 939 10000baseKR_Full); 940 ethtool_link_ksettings_add_link_mode(ks, advertising, 941 10000baseKX4_Full); 942 ethtool_link_ksettings_add_link_mode(ks, advertising, 943 1000baseKX_Full); 944 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 945 break; 946 case I40E_PHY_TYPE_25GBASE_CR: 947 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 948 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 949 ethtool_link_ksettings_add_link_mode(ks, supported, 950 25000baseCR_Full); 951 ethtool_link_ksettings_add_link_mode(ks, advertising, 952 25000baseCR_Full); 953 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 954 955 break; 956 case I40E_PHY_TYPE_25GBASE_AOC: 957 case I40E_PHY_TYPE_25GBASE_ACC: 958 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 959 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 960 ethtool_link_ksettings_add_link_mode(ks, supported, 961 25000baseCR_Full); 962 ethtool_link_ksettings_add_link_mode(ks, advertising, 963 25000baseCR_Full); 964 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 965 966 ethtool_link_ksettings_add_link_mode(ks, supported, 967 10000baseCR_Full); 968 ethtool_link_ksettings_add_link_mode(ks, advertising, 969 10000baseCR_Full); 970 break; 971 default: 972 /* if we got here and link is up something bad is afoot */ 973 netdev_info(netdev, 974 "WARNING: Link is up but PHY type 0x%x is not recognized.\n", 975 hw_link_info->phy_type); 976 } 977 978 /* Now that we've worked out everything that could be supported by the 979 * current PHY type, get what is supported by the NVM and intersect 980 * them to get what is truly supported 981 */ 982 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 983 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 984 ethtool_intersect_link_masks(ks, &cap_ksettings); 985 986 /* Set speed and duplex */ 987 switch (link_speed) { 988 case I40E_LINK_SPEED_40GB: 989 ks->base.speed = SPEED_40000; 990 break; 991 case I40E_LINK_SPEED_25GB: 992 ks->base.speed = SPEED_25000; 993 break; 994 case I40E_LINK_SPEED_20GB: 995 ks->base.speed = SPEED_20000; 996 break; 997 case I40E_LINK_SPEED_10GB: 998 ks->base.speed = SPEED_10000; 999 break; 1000 case I40E_LINK_SPEED_5GB: 1001 ks->base.speed = SPEED_5000; 1002 break; 1003 case I40E_LINK_SPEED_2_5GB: 1004 ks->base.speed = SPEED_2500; 1005 break; 1006 case I40E_LINK_SPEED_1GB: 1007 ks->base.speed = SPEED_1000; 1008 break; 1009 case I40E_LINK_SPEED_100MB: 1010 ks->base.speed = SPEED_100; 1011 break; 1012 default: 1013 ks->base.speed = SPEED_UNKNOWN; 1014 break; 1015 } 1016 ks->base.duplex = DUPLEX_FULL; 1017 } 1018 1019 /** 1020 * i40e_get_settings_link_down - Get the Link settings for when link is down 1021 * @hw: hw structure 1022 * @ks: ethtool ksettings to fill in 1023 * @pf: pointer to physical function struct 1024 * 1025 * Reports link settings that can be determined when link is down 1026 **/ 1027 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1028 struct ethtool_link_ksettings *ks, 1029 struct i40e_pf *pf) 1030 { 1031 /* link is down and the driver needs to fall back on 1032 * supported phy types to figure out what info to display 1033 */ 1034 i40e_phy_type_to_ethtool(pf, ks); 1035 1036 /* With no link speed and duplex are unknown */ 1037 ks->base.speed = SPEED_UNKNOWN; 1038 ks->base.duplex = DUPLEX_UNKNOWN; 1039 } 1040 1041 /** 1042 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1043 * @netdev: network interface device structure 1044 * @ks: ethtool ksettings 1045 * 1046 * Reports speed/duplex settings based on media_type 1047 **/ 1048 static int i40e_get_link_ksettings(struct net_device *netdev, 1049 struct ethtool_link_ksettings *ks) 1050 { 1051 struct i40e_netdev_priv *np = netdev_priv(netdev); 1052 struct i40e_pf *pf = np->vsi->back; 1053 struct i40e_hw *hw = &pf->hw; 1054 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1055 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1056 1057 ethtool_link_ksettings_zero_link_mode(ks, supported); 1058 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1059 1060 if (link_up) 1061 i40e_get_settings_link_up(hw, ks, netdev, pf); 1062 else 1063 i40e_get_settings_link_down(hw, ks, pf); 1064 1065 /* Now set the settings that don't rely on link being up/down */ 1066 /* Set autoneg settings */ 1067 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1068 AUTONEG_ENABLE : AUTONEG_DISABLE); 1069 1070 /* Set media type settings */ 1071 switch (hw->phy.media_type) { 1072 case I40E_MEDIA_TYPE_BACKPLANE: 1073 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1074 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1075 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1076 ethtool_link_ksettings_add_link_mode(ks, advertising, 1077 Backplane); 1078 ks->base.port = PORT_NONE; 1079 break; 1080 case I40E_MEDIA_TYPE_BASET: 1081 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1082 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1083 ks->base.port = PORT_TP; 1084 break; 1085 case I40E_MEDIA_TYPE_DA: 1086 case I40E_MEDIA_TYPE_CX4: 1087 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1088 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1089 ks->base.port = PORT_DA; 1090 break; 1091 case I40E_MEDIA_TYPE_FIBER: 1092 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1093 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1094 ks->base.port = PORT_FIBRE; 1095 break; 1096 case I40E_MEDIA_TYPE_UNKNOWN: 1097 default: 1098 ks->base.port = PORT_OTHER; 1099 break; 1100 } 1101 1102 /* Set flow control settings */ 1103 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1104 1105 switch (hw->fc.requested_mode) { 1106 case I40E_FC_FULL: 1107 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1108 break; 1109 case I40E_FC_TX_PAUSE: 1110 ethtool_link_ksettings_add_link_mode(ks, advertising, 1111 Asym_Pause); 1112 break; 1113 case I40E_FC_RX_PAUSE: 1114 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1115 ethtool_link_ksettings_add_link_mode(ks, advertising, 1116 Asym_Pause); 1117 break; 1118 default: 1119 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1120 ethtool_link_ksettings_del_link_mode(ks, advertising, 1121 Asym_Pause); 1122 break; 1123 } 1124 1125 return 0; 1126 } 1127 1128 /** 1129 * i40e_set_link_ksettings - Set Speed and Duplex 1130 * @netdev: network interface device structure 1131 * @ks: ethtool ksettings 1132 * 1133 * Set speed/duplex per media_types advertised/forced 1134 **/ 1135 static int i40e_set_link_ksettings(struct net_device *netdev, 1136 const struct ethtool_link_ksettings *ks) 1137 { 1138 struct i40e_netdev_priv *np = netdev_priv(netdev); 1139 struct i40e_aq_get_phy_abilities_resp abilities; 1140 struct ethtool_link_ksettings safe_ks; 1141 struct ethtool_link_ksettings copy_ks; 1142 struct i40e_aq_set_phy_config config; 1143 struct i40e_pf *pf = np->vsi->back; 1144 struct i40e_vsi *vsi = np->vsi; 1145 struct i40e_hw *hw = &pf->hw; 1146 bool autoneg_changed = false; 1147 i40e_status status = 0; 1148 int timeout = 50; 1149 int err = 0; 1150 u8 autoneg; 1151 1152 /* Changing port settings is not supported if this isn't the 1153 * port's controlling PF 1154 */ 1155 if (hw->partition_id != 1) { 1156 i40e_partition_setting_complaint(pf); 1157 return -EOPNOTSUPP; 1158 } 1159 if (vsi != pf->vsi[pf->lan_vsi]) 1160 return -EOPNOTSUPP; 1161 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1162 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1163 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1164 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1165 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1166 return -EOPNOTSUPP; 1167 if (hw->device_id == I40E_DEV_ID_KX_B || 1168 hw->device_id == I40E_DEV_ID_KX_C || 1169 hw->device_id == I40E_DEV_ID_20G_KR2 || 1170 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1171 hw->device_id == I40E_DEV_ID_25G_B || 1172 hw->device_id == I40E_DEV_ID_KX_X722) { 1173 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1174 return -EOPNOTSUPP; 1175 } 1176 1177 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1178 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1179 1180 /* save autoneg out of ksettings */ 1181 autoneg = copy_ks.base.autoneg; 1182 1183 /* get our own copy of the bits to check against */ 1184 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1185 safe_ks.base.cmd = copy_ks.base.cmd; 1186 safe_ks.base.link_mode_masks_nwords = 1187 copy_ks.base.link_mode_masks_nwords; 1188 i40e_get_link_ksettings(netdev, &safe_ks); 1189 1190 /* Get link modes supported by hardware and check against modes 1191 * requested by the user. Return an error if unsupported mode was set. 1192 */ 1193 if (!bitmap_subset(copy_ks.link_modes.advertising, 1194 safe_ks.link_modes.supported, 1195 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1196 return -EINVAL; 1197 1198 /* set autoneg back to what it currently is */ 1199 copy_ks.base.autoneg = safe_ks.base.autoneg; 1200 1201 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1202 * trying to set something that we do not support. 1203 */ 1204 if (memcmp(©_ks.base, &safe_ks.base, 1205 sizeof(struct ethtool_link_settings))) 1206 return -EOPNOTSUPP; 1207 1208 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1209 timeout--; 1210 if (!timeout) 1211 return -EBUSY; 1212 usleep_range(1000, 2000); 1213 } 1214 1215 /* Get the current phy config */ 1216 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1217 NULL); 1218 if (status) { 1219 err = -EAGAIN; 1220 goto done; 1221 } 1222 1223 /* Copy abilities to config in case autoneg is not 1224 * set below 1225 */ 1226 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1227 config.abilities = abilities.abilities; 1228 1229 /* Check autoneg */ 1230 if (autoneg == AUTONEG_ENABLE) { 1231 /* If autoneg was not already enabled */ 1232 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1233 /* If autoneg is not supported, return error */ 1234 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1235 supported, 1236 Autoneg)) { 1237 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1238 err = -EINVAL; 1239 goto done; 1240 } 1241 /* Autoneg is allowed to change */ 1242 config.abilities = abilities.abilities | 1243 I40E_AQ_PHY_ENABLE_AN; 1244 autoneg_changed = true; 1245 } 1246 } else { 1247 /* If autoneg is currently enabled */ 1248 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1249 /* If autoneg is supported 10GBASE_T is the only PHY 1250 * that can disable it, so otherwise return error 1251 */ 1252 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1253 supported, 1254 Autoneg) && 1255 hw->phy.link_info.phy_type != 1256 I40E_PHY_TYPE_10GBASE_T) { 1257 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1258 err = -EINVAL; 1259 goto done; 1260 } 1261 /* Autoneg is allowed to change */ 1262 config.abilities = abilities.abilities & 1263 ~I40E_AQ_PHY_ENABLE_AN; 1264 autoneg_changed = true; 1265 } 1266 } 1267 1268 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1269 100baseT_Full)) 1270 config.link_speed |= I40E_LINK_SPEED_100MB; 1271 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1272 1000baseT_Full) || 1273 ethtool_link_ksettings_test_link_mode(ks, advertising, 1274 1000baseX_Full) || 1275 ethtool_link_ksettings_test_link_mode(ks, advertising, 1276 1000baseKX_Full)) 1277 config.link_speed |= I40E_LINK_SPEED_1GB; 1278 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1279 10000baseT_Full) || 1280 ethtool_link_ksettings_test_link_mode(ks, advertising, 1281 10000baseKX4_Full) || 1282 ethtool_link_ksettings_test_link_mode(ks, advertising, 1283 10000baseKR_Full) || 1284 ethtool_link_ksettings_test_link_mode(ks, advertising, 1285 10000baseCR_Full) || 1286 ethtool_link_ksettings_test_link_mode(ks, advertising, 1287 10000baseSR_Full) || 1288 ethtool_link_ksettings_test_link_mode(ks, advertising, 1289 10000baseLR_Full)) 1290 config.link_speed |= I40E_LINK_SPEED_10GB; 1291 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1292 2500baseT_Full)) 1293 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1294 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1295 5000baseT_Full)) 1296 config.link_speed |= I40E_LINK_SPEED_5GB; 1297 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1298 20000baseKR2_Full)) 1299 config.link_speed |= I40E_LINK_SPEED_20GB; 1300 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1301 25000baseCR_Full) || 1302 ethtool_link_ksettings_test_link_mode(ks, advertising, 1303 25000baseKR_Full) || 1304 ethtool_link_ksettings_test_link_mode(ks, advertising, 1305 25000baseSR_Full)) 1306 config.link_speed |= I40E_LINK_SPEED_25GB; 1307 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1308 40000baseKR4_Full) || 1309 ethtool_link_ksettings_test_link_mode(ks, advertising, 1310 40000baseCR4_Full) || 1311 ethtool_link_ksettings_test_link_mode(ks, advertising, 1312 40000baseSR4_Full) || 1313 ethtool_link_ksettings_test_link_mode(ks, advertising, 1314 40000baseLR4_Full)) 1315 config.link_speed |= I40E_LINK_SPEED_40GB; 1316 1317 /* If speed didn't get set, set it to what it currently is. 1318 * This is needed because if advertise is 0 (as it is when autoneg 1319 * is disabled) then speed won't get set. 1320 */ 1321 if (!config.link_speed) 1322 config.link_speed = abilities.link_speed; 1323 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1324 /* copy over the rest of the abilities */ 1325 config.phy_type = abilities.phy_type; 1326 config.phy_type_ext = abilities.phy_type_ext; 1327 config.eee_capability = abilities.eee_capability; 1328 config.eeer = abilities.eeer_val; 1329 config.low_power_ctrl = abilities.d3_lpan; 1330 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1331 I40E_AQ_PHY_FEC_CONFIG_MASK; 1332 1333 /* save the requested speeds */ 1334 hw->phy.link_info.requested_speeds = config.link_speed; 1335 /* set link and auto negotiation so changes take effect */ 1336 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1337 /* If link is up put link down */ 1338 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1339 /* Tell the OS link is going down, the link will go 1340 * back up when fw says it is ready asynchronously 1341 */ 1342 i40e_print_link_message(vsi, false); 1343 netif_carrier_off(netdev); 1344 netif_tx_stop_all_queues(netdev); 1345 } 1346 1347 /* make the aq call */ 1348 status = i40e_aq_set_phy_config(hw, &config, NULL); 1349 if (status) { 1350 netdev_info(netdev, 1351 "Set phy config failed, err %s aq_err %s\n", 1352 i40e_stat_str(hw, status), 1353 i40e_aq_str(hw, hw->aq.asq_last_status)); 1354 err = -EAGAIN; 1355 goto done; 1356 } 1357 1358 status = i40e_update_link_info(hw); 1359 if (status) 1360 netdev_dbg(netdev, 1361 "Updating link info failed with err %s aq_err %s\n", 1362 i40e_stat_str(hw, status), 1363 i40e_aq_str(hw, hw->aq.asq_last_status)); 1364 1365 } else { 1366 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1367 } 1368 1369 done: 1370 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1371 1372 return err; 1373 } 1374 1375 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1376 { 1377 struct i40e_netdev_priv *np = netdev_priv(netdev); 1378 struct i40e_aq_get_phy_abilities_resp abilities; 1379 struct i40e_pf *pf = np->vsi->back; 1380 struct i40e_hw *hw = &pf->hw; 1381 i40e_status status = 0; 1382 u32 flags = 0; 1383 int err = 0; 1384 1385 flags = READ_ONCE(pf->flags); 1386 i40e_set_fec_in_flags(fec_cfg, &flags); 1387 1388 /* Get the current phy config */ 1389 memset(&abilities, 0, sizeof(abilities)); 1390 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1391 NULL); 1392 if (status) { 1393 err = -EAGAIN; 1394 goto done; 1395 } 1396 1397 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1398 struct i40e_aq_set_phy_config config; 1399 1400 memset(&config, 0, sizeof(config)); 1401 config.phy_type = abilities.phy_type; 1402 config.abilities = abilities.abilities; 1403 config.phy_type_ext = abilities.phy_type_ext; 1404 config.link_speed = abilities.link_speed; 1405 config.eee_capability = abilities.eee_capability; 1406 config.eeer = abilities.eeer_val; 1407 config.low_power_ctrl = abilities.d3_lpan; 1408 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1409 status = i40e_aq_set_phy_config(hw, &config, NULL); 1410 if (status) { 1411 netdev_info(netdev, 1412 "Set phy config failed, err %s aq_err %s\n", 1413 i40e_stat_str(hw, status), 1414 i40e_aq_str(hw, hw->aq.asq_last_status)); 1415 err = -EAGAIN; 1416 goto done; 1417 } 1418 pf->flags = flags; 1419 status = i40e_update_link_info(hw); 1420 if (status) 1421 /* debug level message only due to relation to the link 1422 * itself rather than to the FEC settings 1423 * (e.g. no physical connection etc.) 1424 */ 1425 netdev_dbg(netdev, 1426 "Updating link info failed with err %s aq_err %s\n", 1427 i40e_stat_str(hw, status), 1428 i40e_aq_str(hw, hw->aq.asq_last_status)); 1429 } 1430 1431 done: 1432 return err; 1433 } 1434 1435 static int i40e_get_fec_param(struct net_device *netdev, 1436 struct ethtool_fecparam *fecparam) 1437 { 1438 struct i40e_netdev_priv *np = netdev_priv(netdev); 1439 struct i40e_aq_get_phy_abilities_resp abilities; 1440 struct i40e_pf *pf = np->vsi->back; 1441 struct i40e_hw *hw = &pf->hw; 1442 i40e_status status = 0; 1443 int err = 0; 1444 u8 fec_cfg; 1445 1446 /* Get the current phy config */ 1447 memset(&abilities, 0, sizeof(abilities)); 1448 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1449 NULL); 1450 if (status) { 1451 err = -EAGAIN; 1452 goto done; 1453 } 1454 1455 fecparam->fec = 0; 1456 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1457 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1458 fecparam->fec |= ETHTOOL_FEC_AUTO; 1459 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1460 I40E_AQ_SET_FEC_ABILITY_RS)) 1461 fecparam->fec |= ETHTOOL_FEC_RS; 1462 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1463 I40E_AQ_SET_FEC_ABILITY_KR)) 1464 fecparam->fec |= ETHTOOL_FEC_BASER; 1465 if (fec_cfg == 0) 1466 fecparam->fec |= ETHTOOL_FEC_OFF; 1467 1468 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1469 fecparam->active_fec = ETHTOOL_FEC_BASER; 1470 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1471 fecparam->active_fec = ETHTOOL_FEC_RS; 1472 else 1473 fecparam->active_fec = ETHTOOL_FEC_OFF; 1474 done: 1475 return err; 1476 } 1477 1478 static int i40e_set_fec_param(struct net_device *netdev, 1479 struct ethtool_fecparam *fecparam) 1480 { 1481 struct i40e_netdev_priv *np = netdev_priv(netdev); 1482 struct i40e_pf *pf = np->vsi->back; 1483 struct i40e_hw *hw = &pf->hw; 1484 u8 fec_cfg = 0; 1485 1486 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1487 hw->device_id != I40E_DEV_ID_25G_B && 1488 hw->device_id != I40E_DEV_ID_KX_X722) 1489 return -EPERM; 1490 1491 if (hw->mac.type == I40E_MAC_X722 && 1492 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1493 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1494 return -EOPNOTSUPP; 1495 } 1496 1497 switch (fecparam->fec) { 1498 case ETHTOOL_FEC_AUTO: 1499 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1500 break; 1501 case ETHTOOL_FEC_RS: 1502 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1503 I40E_AQ_SET_FEC_ABILITY_RS); 1504 break; 1505 case ETHTOOL_FEC_BASER: 1506 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1507 I40E_AQ_SET_FEC_ABILITY_KR); 1508 break; 1509 case ETHTOOL_FEC_OFF: 1510 case ETHTOOL_FEC_NONE: 1511 fec_cfg = 0; 1512 break; 1513 default: 1514 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1515 fecparam->fec); 1516 return -EINVAL; 1517 } 1518 1519 return i40e_set_fec_cfg(netdev, fec_cfg); 1520 } 1521 1522 static int i40e_nway_reset(struct net_device *netdev) 1523 { 1524 /* restart autonegotiation */ 1525 struct i40e_netdev_priv *np = netdev_priv(netdev); 1526 struct i40e_pf *pf = np->vsi->back; 1527 struct i40e_hw *hw = &pf->hw; 1528 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1529 i40e_status ret = 0; 1530 1531 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1532 if (ret) { 1533 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1534 i40e_stat_str(hw, ret), 1535 i40e_aq_str(hw, hw->aq.asq_last_status)); 1536 return -EIO; 1537 } 1538 1539 return 0; 1540 } 1541 1542 /** 1543 * i40e_get_pauseparam - Get Flow Control status 1544 * @netdev: netdevice structure 1545 * @pause: buffer to return pause parameters 1546 * 1547 * Return tx/rx-pause status 1548 **/ 1549 static void i40e_get_pauseparam(struct net_device *netdev, 1550 struct ethtool_pauseparam *pause) 1551 { 1552 struct i40e_netdev_priv *np = netdev_priv(netdev); 1553 struct i40e_pf *pf = np->vsi->back; 1554 struct i40e_hw *hw = &pf->hw; 1555 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1556 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1557 1558 pause->autoneg = 1559 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1560 AUTONEG_ENABLE : AUTONEG_DISABLE); 1561 1562 /* PFC enabled so report LFC as off */ 1563 if (dcbx_cfg->pfc.pfcenable) { 1564 pause->rx_pause = 0; 1565 pause->tx_pause = 0; 1566 return; 1567 } 1568 1569 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1570 pause->rx_pause = 1; 1571 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1572 pause->tx_pause = 1; 1573 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1574 pause->rx_pause = 1; 1575 pause->tx_pause = 1; 1576 } 1577 } 1578 1579 /** 1580 * i40e_set_pauseparam - Set Flow Control parameter 1581 * @netdev: network interface device structure 1582 * @pause: return tx/rx flow control status 1583 **/ 1584 static int i40e_set_pauseparam(struct net_device *netdev, 1585 struct ethtool_pauseparam *pause) 1586 { 1587 struct i40e_netdev_priv *np = netdev_priv(netdev); 1588 struct i40e_pf *pf = np->vsi->back; 1589 struct i40e_vsi *vsi = np->vsi; 1590 struct i40e_hw *hw = &pf->hw; 1591 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1592 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1593 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1594 i40e_status status; 1595 u8 aq_failures; 1596 int err = 0; 1597 u32 is_an; 1598 1599 /* Changing the port's flow control is not supported if this isn't the 1600 * port's controlling PF 1601 */ 1602 if (hw->partition_id != 1) { 1603 i40e_partition_setting_complaint(pf); 1604 return -EOPNOTSUPP; 1605 } 1606 1607 if (vsi != pf->vsi[pf->lan_vsi]) 1608 return -EOPNOTSUPP; 1609 1610 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1611 if (pause->autoneg != is_an) { 1612 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1613 return -EOPNOTSUPP; 1614 } 1615 1616 /* If we have link and don't have autoneg */ 1617 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1618 /* Send message that it might not necessarily work*/ 1619 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1620 } 1621 1622 if (dcbx_cfg->pfc.pfcenable) { 1623 netdev_info(netdev, 1624 "Priority flow control enabled. Cannot set link flow control.\n"); 1625 return -EOPNOTSUPP; 1626 } 1627 1628 if (pause->rx_pause && pause->tx_pause) 1629 hw->fc.requested_mode = I40E_FC_FULL; 1630 else if (pause->rx_pause && !pause->tx_pause) 1631 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1632 else if (!pause->rx_pause && pause->tx_pause) 1633 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1634 else if (!pause->rx_pause && !pause->tx_pause) 1635 hw->fc.requested_mode = I40E_FC_NONE; 1636 else 1637 return -EINVAL; 1638 1639 /* Tell the OS link is going down, the link will go back up when fw 1640 * says it is ready asynchronously 1641 */ 1642 i40e_print_link_message(vsi, false); 1643 netif_carrier_off(netdev); 1644 netif_tx_stop_all_queues(netdev); 1645 1646 /* Set the fc mode and only restart an if link is up*/ 1647 status = i40e_set_fc(hw, &aq_failures, link_up); 1648 1649 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1650 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1651 i40e_stat_str(hw, status), 1652 i40e_aq_str(hw, hw->aq.asq_last_status)); 1653 err = -EAGAIN; 1654 } 1655 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1656 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1657 i40e_stat_str(hw, status), 1658 i40e_aq_str(hw, hw->aq.asq_last_status)); 1659 err = -EAGAIN; 1660 } 1661 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1662 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1663 i40e_stat_str(hw, status), 1664 i40e_aq_str(hw, hw->aq.asq_last_status)); 1665 err = -EAGAIN; 1666 } 1667 1668 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1669 /* Give it a little more time to try to come back */ 1670 msleep(75); 1671 if (!test_bit(__I40E_DOWN, pf->state)) 1672 return i40e_nway_reset(netdev); 1673 } 1674 1675 return err; 1676 } 1677 1678 static u32 i40e_get_msglevel(struct net_device *netdev) 1679 { 1680 struct i40e_netdev_priv *np = netdev_priv(netdev); 1681 struct i40e_pf *pf = np->vsi->back; 1682 u32 debug_mask = pf->hw.debug_mask; 1683 1684 if (debug_mask) 1685 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1686 1687 return pf->msg_enable; 1688 } 1689 1690 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1691 { 1692 struct i40e_netdev_priv *np = netdev_priv(netdev); 1693 struct i40e_pf *pf = np->vsi->back; 1694 1695 if (I40E_DEBUG_USER & data) 1696 pf->hw.debug_mask = data; 1697 else 1698 pf->msg_enable = data; 1699 } 1700 1701 static int i40e_get_regs_len(struct net_device *netdev) 1702 { 1703 int reg_count = 0; 1704 int i; 1705 1706 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1707 reg_count += i40e_reg_list[i].elements; 1708 1709 return reg_count * sizeof(u32); 1710 } 1711 1712 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1713 void *p) 1714 { 1715 struct i40e_netdev_priv *np = netdev_priv(netdev); 1716 struct i40e_pf *pf = np->vsi->back; 1717 struct i40e_hw *hw = &pf->hw; 1718 u32 *reg_buf = p; 1719 unsigned int i, j, ri; 1720 u32 reg; 1721 1722 /* Tell ethtool which driver-version-specific regs output we have. 1723 * 1724 * At some point, if we have ethtool doing special formatting of 1725 * this data, it will rely on this version number to know how to 1726 * interpret things. Hence, this needs to be updated if/when the 1727 * diags register table is changed. 1728 */ 1729 regs->version = 1; 1730 1731 /* loop through the diags reg table for what to print */ 1732 ri = 0; 1733 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1734 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1735 reg = i40e_reg_list[i].offset 1736 + (j * i40e_reg_list[i].stride); 1737 reg_buf[ri++] = rd32(hw, reg); 1738 } 1739 } 1740 1741 } 1742 1743 static int i40e_get_eeprom(struct net_device *netdev, 1744 struct ethtool_eeprom *eeprom, u8 *bytes) 1745 { 1746 struct i40e_netdev_priv *np = netdev_priv(netdev); 1747 struct i40e_hw *hw = &np->vsi->back->hw; 1748 struct i40e_pf *pf = np->vsi->back; 1749 int ret_val = 0, len, offset; 1750 u8 *eeprom_buff; 1751 u16 i, sectors; 1752 bool last; 1753 u32 magic; 1754 1755 #define I40E_NVM_SECTOR_SIZE 4096 1756 if (eeprom->len == 0) 1757 return -EINVAL; 1758 1759 /* check for NVMUpdate access method */ 1760 magic = hw->vendor_id | (hw->device_id << 16); 1761 if (eeprom->magic && eeprom->magic != magic) { 1762 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1763 int errno = 0; 1764 1765 /* make sure it is the right magic for NVMUpdate */ 1766 if ((eeprom->magic >> 16) != hw->device_id) 1767 errno = -EINVAL; 1768 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1769 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1770 errno = -EBUSY; 1771 else 1772 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1773 1774 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1775 dev_info(&pf->pdev->dev, 1776 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1777 ret_val, hw->aq.asq_last_status, errno, 1778 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1779 cmd->offset, cmd->data_size); 1780 1781 return errno; 1782 } 1783 1784 /* normal ethtool get_eeprom support */ 1785 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1786 1787 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1788 if (!eeprom_buff) 1789 return -ENOMEM; 1790 1791 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1792 if (ret_val) { 1793 dev_info(&pf->pdev->dev, 1794 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1795 ret_val, hw->aq.asq_last_status); 1796 goto free_buff; 1797 } 1798 1799 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1800 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1801 len = I40E_NVM_SECTOR_SIZE; 1802 last = false; 1803 for (i = 0; i < sectors; i++) { 1804 if (i == (sectors - 1)) { 1805 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1806 last = true; 1807 } 1808 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1809 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1810 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1811 last, NULL); 1812 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1813 dev_info(&pf->pdev->dev, 1814 "read NVM failed, invalid offset 0x%x\n", 1815 offset); 1816 break; 1817 } else if (ret_val && 1818 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1819 dev_info(&pf->pdev->dev, 1820 "read NVM failed, access, offset 0x%x\n", 1821 offset); 1822 break; 1823 } else if (ret_val) { 1824 dev_info(&pf->pdev->dev, 1825 "read NVM failed offset %d err=%d status=0x%x\n", 1826 offset, ret_val, hw->aq.asq_last_status); 1827 break; 1828 } 1829 } 1830 1831 i40e_release_nvm(hw); 1832 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1833 free_buff: 1834 kfree(eeprom_buff); 1835 return ret_val; 1836 } 1837 1838 static int i40e_get_eeprom_len(struct net_device *netdev) 1839 { 1840 struct i40e_netdev_priv *np = netdev_priv(netdev); 1841 struct i40e_hw *hw = &np->vsi->back->hw; 1842 u32 val; 1843 1844 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1845 if (hw->mac.type == I40E_MAC_X722) { 1846 val = X722_EEPROM_SCOPE_LIMIT + 1; 1847 return val; 1848 } 1849 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1850 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1851 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1852 /* register returns value in power of 2, 64Kbyte chunks. */ 1853 val = (64 * 1024) * BIT(val); 1854 return val; 1855 } 1856 1857 static int i40e_set_eeprom(struct net_device *netdev, 1858 struct ethtool_eeprom *eeprom, u8 *bytes) 1859 { 1860 struct i40e_netdev_priv *np = netdev_priv(netdev); 1861 struct i40e_hw *hw = &np->vsi->back->hw; 1862 struct i40e_pf *pf = np->vsi->back; 1863 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1864 int ret_val = 0; 1865 int errno = 0; 1866 u32 magic; 1867 1868 /* normal ethtool set_eeprom is not supported */ 1869 magic = hw->vendor_id | (hw->device_id << 16); 1870 if (eeprom->magic == magic) 1871 errno = -EOPNOTSUPP; 1872 /* check for NVMUpdate access method */ 1873 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1874 errno = -EINVAL; 1875 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1876 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1877 errno = -EBUSY; 1878 else 1879 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1880 1881 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1882 dev_info(&pf->pdev->dev, 1883 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1884 ret_val, hw->aq.asq_last_status, errno, 1885 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1886 cmd->offset, cmd->data_size); 1887 1888 return errno; 1889 } 1890 1891 static void i40e_get_drvinfo(struct net_device *netdev, 1892 struct ethtool_drvinfo *drvinfo) 1893 { 1894 struct i40e_netdev_priv *np = netdev_priv(netdev); 1895 struct i40e_vsi *vsi = np->vsi; 1896 struct i40e_pf *pf = vsi->back; 1897 1898 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1899 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1900 sizeof(drvinfo->fw_version)); 1901 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1902 sizeof(drvinfo->bus_info)); 1903 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1904 if (pf->hw.pf_id == 0) 1905 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 1906 } 1907 1908 static void i40e_get_ringparam(struct net_device *netdev, 1909 struct ethtool_ringparam *ring) 1910 { 1911 struct i40e_netdev_priv *np = netdev_priv(netdev); 1912 struct i40e_pf *pf = np->vsi->back; 1913 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1914 1915 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1916 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1917 ring->rx_mini_max_pending = 0; 1918 ring->rx_jumbo_max_pending = 0; 1919 ring->rx_pending = vsi->rx_rings[0]->count; 1920 ring->tx_pending = vsi->tx_rings[0]->count; 1921 ring->rx_mini_pending = 0; 1922 ring->rx_jumbo_pending = 0; 1923 } 1924 1925 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 1926 { 1927 if (i40e_enabled_xdp_vsi(vsi)) { 1928 return index < vsi->num_queue_pairs || 1929 (index >= vsi->alloc_queue_pairs && 1930 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 1931 } 1932 1933 return index < vsi->num_queue_pairs; 1934 } 1935 1936 static int i40e_set_ringparam(struct net_device *netdev, 1937 struct ethtool_ringparam *ring) 1938 { 1939 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1940 struct i40e_netdev_priv *np = netdev_priv(netdev); 1941 struct i40e_hw *hw = &np->vsi->back->hw; 1942 struct i40e_vsi *vsi = np->vsi; 1943 struct i40e_pf *pf = vsi->back; 1944 u32 new_rx_count, new_tx_count; 1945 u16 tx_alloc_queue_pairs; 1946 int timeout = 50; 1947 int i, err = 0; 1948 1949 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1950 return -EINVAL; 1951 1952 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1953 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1954 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1955 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1956 netdev_info(netdev, 1957 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1958 ring->tx_pending, ring->rx_pending, 1959 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1960 return -EINVAL; 1961 } 1962 1963 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1964 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1965 1966 /* if nothing to do return success */ 1967 if ((new_tx_count == vsi->tx_rings[0]->count) && 1968 (new_rx_count == vsi->rx_rings[0]->count)) 1969 return 0; 1970 1971 /* If there is a AF_XDP page pool attached to any of Rx rings, 1972 * disallow changing the number of descriptors -- regardless 1973 * if the netdev is running or not. 1974 */ 1975 if (i40e_xsk_any_rx_ring_enabled(vsi)) 1976 return -EBUSY; 1977 1978 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1979 timeout--; 1980 if (!timeout) 1981 return -EBUSY; 1982 usleep_range(1000, 2000); 1983 } 1984 1985 if (!netif_running(vsi->netdev)) { 1986 /* simple case - set for the next time the netdev is started */ 1987 for (i = 0; i < vsi->num_queue_pairs; i++) { 1988 vsi->tx_rings[i]->count = new_tx_count; 1989 vsi->rx_rings[i]->count = new_rx_count; 1990 if (i40e_enabled_xdp_vsi(vsi)) 1991 vsi->xdp_rings[i]->count = new_tx_count; 1992 } 1993 vsi->num_tx_desc = new_tx_count; 1994 vsi->num_rx_desc = new_rx_count; 1995 goto done; 1996 } 1997 1998 /* We can't just free everything and then setup again, 1999 * because the ISRs in MSI-X mode get passed pointers 2000 * to the Tx and Rx ring structs. 2001 */ 2002 2003 /* alloc updated Tx and XDP Tx resources */ 2004 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2005 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2006 if (new_tx_count != vsi->tx_rings[0]->count) { 2007 netdev_info(netdev, 2008 "Changing Tx descriptor count from %d to %d.\n", 2009 vsi->tx_rings[0]->count, new_tx_count); 2010 tx_rings = kcalloc(tx_alloc_queue_pairs, 2011 sizeof(struct i40e_ring), GFP_KERNEL); 2012 if (!tx_rings) { 2013 err = -ENOMEM; 2014 goto done; 2015 } 2016 2017 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2018 if (!i40e_active_tx_ring_index(vsi, i)) 2019 continue; 2020 2021 tx_rings[i] = *vsi->tx_rings[i]; 2022 tx_rings[i].count = new_tx_count; 2023 /* the desc and bi pointers will be reallocated in the 2024 * setup call 2025 */ 2026 tx_rings[i].desc = NULL; 2027 tx_rings[i].rx_bi = NULL; 2028 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2029 if (err) { 2030 while (i) { 2031 i--; 2032 if (!i40e_active_tx_ring_index(vsi, i)) 2033 continue; 2034 i40e_free_tx_resources(&tx_rings[i]); 2035 } 2036 kfree(tx_rings); 2037 tx_rings = NULL; 2038 2039 goto done; 2040 } 2041 } 2042 } 2043 2044 /* alloc updated Rx resources */ 2045 if (new_rx_count != vsi->rx_rings[0]->count) { 2046 netdev_info(netdev, 2047 "Changing Rx descriptor count from %d to %d\n", 2048 vsi->rx_rings[0]->count, new_rx_count); 2049 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2050 sizeof(struct i40e_ring), GFP_KERNEL); 2051 if (!rx_rings) { 2052 err = -ENOMEM; 2053 goto free_tx; 2054 } 2055 2056 for (i = 0; i < vsi->num_queue_pairs; i++) { 2057 u16 unused; 2058 2059 /* clone ring and setup updated count */ 2060 rx_rings[i] = *vsi->rx_rings[i]; 2061 rx_rings[i].count = new_rx_count; 2062 /* the desc and bi pointers will be reallocated in the 2063 * setup call 2064 */ 2065 rx_rings[i].desc = NULL; 2066 rx_rings[i].rx_bi = NULL; 2067 /* Clear cloned XDP RX-queue info before setup call */ 2068 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2069 /* this is to allow wr32 to have something to write to 2070 * during early allocation of Rx buffers 2071 */ 2072 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2073 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2074 if (err) 2075 goto rx_unwind; 2076 err = i40e_alloc_rx_bi(&rx_rings[i]); 2077 if (err) 2078 goto rx_unwind; 2079 2080 /* now allocate the Rx buffers to make sure the OS 2081 * has enough memory, any failure here means abort 2082 */ 2083 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2084 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2085 rx_unwind: 2086 if (err) { 2087 do { 2088 i40e_free_rx_resources(&rx_rings[i]); 2089 } while (i--); 2090 kfree(rx_rings); 2091 rx_rings = NULL; 2092 2093 goto free_tx; 2094 } 2095 } 2096 } 2097 2098 /* Bring interface down, copy in the new ring info, 2099 * then restore the interface 2100 */ 2101 i40e_down(vsi); 2102 2103 if (tx_rings) { 2104 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2105 if (i40e_active_tx_ring_index(vsi, i)) { 2106 i40e_free_tx_resources(vsi->tx_rings[i]); 2107 *vsi->tx_rings[i] = tx_rings[i]; 2108 } 2109 } 2110 kfree(tx_rings); 2111 tx_rings = NULL; 2112 } 2113 2114 if (rx_rings) { 2115 for (i = 0; i < vsi->num_queue_pairs; i++) { 2116 i40e_free_rx_resources(vsi->rx_rings[i]); 2117 /* get the real tail offset */ 2118 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2119 /* this is to fake out the allocation routine 2120 * into thinking it has to realloc everything 2121 * but the recycling logic will let us re-use 2122 * the buffers allocated above 2123 */ 2124 rx_rings[i].next_to_use = 0; 2125 rx_rings[i].next_to_clean = 0; 2126 rx_rings[i].next_to_alloc = 0; 2127 /* do a struct copy */ 2128 *vsi->rx_rings[i] = rx_rings[i]; 2129 } 2130 kfree(rx_rings); 2131 rx_rings = NULL; 2132 } 2133 2134 vsi->num_tx_desc = new_tx_count; 2135 vsi->num_rx_desc = new_rx_count; 2136 i40e_up(vsi); 2137 2138 free_tx: 2139 /* error cleanup if the Rx allocations failed after getting Tx */ 2140 if (tx_rings) { 2141 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2142 if (i40e_active_tx_ring_index(vsi, i)) 2143 i40e_free_tx_resources(vsi->tx_rings[i]); 2144 } 2145 kfree(tx_rings); 2146 tx_rings = NULL; 2147 } 2148 2149 done: 2150 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2151 2152 return err; 2153 } 2154 2155 /** 2156 * i40e_get_stats_count - return the stats count for a device 2157 * @netdev: the netdev to return the count for 2158 * 2159 * Returns the total number of statistics for this netdev. Note that even 2160 * though this is a function, it is required that the count for a specific 2161 * netdev must never change. Basing the count on static values such as the 2162 * maximum number of queues or the device type is ok. However, the API for 2163 * obtaining stats is *not* safe against changes based on non-static 2164 * values such as the *current* number of queues, or runtime flags. 2165 * 2166 * If a statistic is not always enabled, return it as part of the count 2167 * anyways, always return its string, and report its value as zero. 2168 **/ 2169 static int i40e_get_stats_count(struct net_device *netdev) 2170 { 2171 struct i40e_netdev_priv *np = netdev_priv(netdev); 2172 struct i40e_vsi *vsi = np->vsi; 2173 struct i40e_pf *pf = vsi->back; 2174 int stats_len; 2175 2176 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2177 stats_len = I40E_PF_STATS_LEN; 2178 else 2179 stats_len = I40E_VSI_STATS_LEN; 2180 2181 /* The number of stats reported for a given net_device must remain 2182 * constant throughout the life of that device. 2183 * 2184 * This is because the API for obtaining the size, strings, and stats 2185 * is spread out over three separate ethtool ioctls. There is no safe 2186 * way to lock the number of stats across these calls, so we must 2187 * assume that they will never change. 2188 * 2189 * Due to this, we report the maximum number of queues, even if not 2190 * every queue is currently configured. Since we always allocate 2191 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2192 * works because the num_tx_queues is set at device creation and never 2193 * changes. 2194 */ 2195 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2196 2197 return stats_len; 2198 } 2199 2200 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2201 { 2202 struct i40e_netdev_priv *np = netdev_priv(netdev); 2203 struct i40e_vsi *vsi = np->vsi; 2204 struct i40e_pf *pf = vsi->back; 2205 2206 switch (sset) { 2207 case ETH_SS_TEST: 2208 return I40E_TEST_LEN; 2209 case ETH_SS_STATS: 2210 return i40e_get_stats_count(netdev); 2211 case ETH_SS_PRIV_FLAGS: 2212 return I40E_PRIV_FLAGS_STR_LEN + 2213 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2214 default: 2215 return -EOPNOTSUPP; 2216 } 2217 } 2218 2219 /** 2220 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2221 * @pf: the PF device structure 2222 * @i: the priority value to copy 2223 * 2224 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2225 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2226 * of the PFC stats for the given priority. 2227 **/ 2228 static inline struct i40e_pfc_stats 2229 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2230 { 2231 #define I40E_GET_PFC_STAT(stat, priority) \ 2232 .stat = pf->stats.stat[priority] 2233 2234 struct i40e_pfc_stats pfc = { 2235 I40E_GET_PFC_STAT(priority_xon_rx, i), 2236 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2237 I40E_GET_PFC_STAT(priority_xon_tx, i), 2238 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2239 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2240 }; 2241 return pfc; 2242 } 2243 2244 /** 2245 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2246 * @netdev: the netdev to collect stats for 2247 * @stats: ethtool stats command structure 2248 * @data: ethtool supplied buffer 2249 * 2250 * Copy the stats values for this netdev into the buffer. Expects data to be 2251 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2252 * statistics must be copied in a static order, and the count must not change 2253 * for a given netdev. See i40e_get_stats_count for more details. 2254 * 2255 * If a statistic is not currently valid (such as a disabled queue), this 2256 * function reports its value as zero. 2257 **/ 2258 static void i40e_get_ethtool_stats(struct net_device *netdev, 2259 struct ethtool_stats *stats, u64 *data) 2260 { 2261 struct i40e_netdev_priv *np = netdev_priv(netdev); 2262 struct i40e_vsi *vsi = np->vsi; 2263 struct i40e_pf *pf = vsi->back; 2264 struct i40e_veb *veb = NULL; 2265 unsigned int i; 2266 bool veb_stats; 2267 u64 *p = data; 2268 2269 i40e_update_stats(vsi); 2270 2271 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2272 i40e_gstrings_net_stats); 2273 2274 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2275 2276 rcu_read_lock(); 2277 for (i = 0; i < netdev->num_tx_queues; i++) { 2278 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2279 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2280 } 2281 rcu_read_unlock(); 2282 2283 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2284 goto check_data_pointer; 2285 2286 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2287 (pf->lan_veb < I40E_MAX_VEB) && 2288 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2289 2290 if (veb_stats) { 2291 veb = pf->veb[pf->lan_veb]; 2292 i40e_update_veb_stats(veb); 2293 } 2294 2295 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2296 * we initialize stats to zero and update the data pointer 2297 * intelligently 2298 */ 2299 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2300 i40e_gstrings_veb_stats); 2301 2302 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2303 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2304 i40e_gstrings_veb_tc_stats); 2305 2306 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2307 2308 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2309 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2310 2311 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2312 } 2313 2314 check_data_pointer: 2315 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2316 "ethtool stats count mismatch!"); 2317 } 2318 2319 /** 2320 * i40e_get_stat_strings - copy stat strings into supplied buffer 2321 * @netdev: the netdev to collect strings for 2322 * @data: supplied buffer to copy strings into 2323 * 2324 * Copy the strings related to stats for this netdev. Expects data to be 2325 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2326 * strings must be copied in a static order and the total count must not 2327 * change for a given netdev. See i40e_get_stats_count for more details. 2328 **/ 2329 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2330 { 2331 struct i40e_netdev_priv *np = netdev_priv(netdev); 2332 struct i40e_vsi *vsi = np->vsi; 2333 struct i40e_pf *pf = vsi->back; 2334 unsigned int i; 2335 u8 *p = data; 2336 2337 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2338 2339 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2340 2341 for (i = 0; i < netdev->num_tx_queues; i++) { 2342 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2343 "tx", i); 2344 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2345 "rx", i); 2346 } 2347 2348 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2349 goto check_data_pointer; 2350 2351 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2352 2353 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2354 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2355 2356 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2357 2358 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2359 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2360 2361 check_data_pointer: 2362 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2363 "stat strings count mismatch!"); 2364 } 2365 2366 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2367 { 2368 struct i40e_netdev_priv *np = netdev_priv(netdev); 2369 struct i40e_vsi *vsi = np->vsi; 2370 struct i40e_pf *pf = vsi->back; 2371 char *p = (char *)data; 2372 unsigned int i; 2373 2374 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 2375 snprintf(p, ETH_GSTRING_LEN, "%s", 2376 i40e_gstrings_priv_flags[i].flag_string); 2377 p += ETH_GSTRING_LEN; 2378 } 2379 if (pf->hw.pf_id != 0) 2380 return; 2381 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) { 2382 snprintf(p, ETH_GSTRING_LEN, "%s", 2383 i40e_gl_gstrings_priv_flags[i].flag_string); 2384 p += ETH_GSTRING_LEN; 2385 } 2386 } 2387 2388 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2389 u8 *data) 2390 { 2391 switch (stringset) { 2392 case ETH_SS_TEST: 2393 memcpy(data, i40e_gstrings_test, 2394 I40E_TEST_LEN * ETH_GSTRING_LEN); 2395 break; 2396 case ETH_SS_STATS: 2397 i40e_get_stat_strings(netdev, data); 2398 break; 2399 case ETH_SS_PRIV_FLAGS: 2400 i40e_get_priv_flag_strings(netdev, data); 2401 break; 2402 default: 2403 break; 2404 } 2405 } 2406 2407 static int i40e_get_ts_info(struct net_device *dev, 2408 struct ethtool_ts_info *info) 2409 { 2410 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2411 2412 /* only report HW timestamping if PTP is enabled */ 2413 if (!(pf->flags & I40E_FLAG_PTP)) 2414 return ethtool_op_get_ts_info(dev, info); 2415 2416 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2417 SOF_TIMESTAMPING_RX_SOFTWARE | 2418 SOF_TIMESTAMPING_SOFTWARE | 2419 SOF_TIMESTAMPING_TX_HARDWARE | 2420 SOF_TIMESTAMPING_RX_HARDWARE | 2421 SOF_TIMESTAMPING_RAW_HARDWARE; 2422 2423 if (pf->ptp_clock) 2424 info->phc_index = ptp_clock_index(pf->ptp_clock); 2425 else 2426 info->phc_index = -1; 2427 2428 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2429 2430 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2431 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2432 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2433 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2434 2435 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2436 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2437 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2438 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2439 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2440 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2441 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2442 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2443 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2444 2445 return 0; 2446 } 2447 2448 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2449 { 2450 struct i40e_netdev_priv *np = netdev_priv(netdev); 2451 struct i40e_pf *pf = np->vsi->back; 2452 i40e_status status; 2453 bool link_up = false; 2454 2455 netif_info(pf, hw, netdev, "link test\n"); 2456 status = i40e_get_link_status(&pf->hw, &link_up); 2457 if (status) { 2458 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2459 *data = 1; 2460 return *data; 2461 } 2462 2463 if (link_up) 2464 *data = 0; 2465 else 2466 *data = 1; 2467 2468 return *data; 2469 } 2470 2471 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2472 { 2473 struct i40e_netdev_priv *np = netdev_priv(netdev); 2474 struct i40e_pf *pf = np->vsi->back; 2475 2476 netif_info(pf, hw, netdev, "register test\n"); 2477 *data = i40e_diag_reg_test(&pf->hw); 2478 2479 return *data; 2480 } 2481 2482 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2483 { 2484 struct i40e_netdev_priv *np = netdev_priv(netdev); 2485 struct i40e_pf *pf = np->vsi->back; 2486 2487 netif_info(pf, hw, netdev, "eeprom test\n"); 2488 *data = i40e_diag_eeprom_test(&pf->hw); 2489 2490 /* forcebly clear the NVM Update state machine */ 2491 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2492 2493 return *data; 2494 } 2495 2496 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2497 { 2498 struct i40e_netdev_priv *np = netdev_priv(netdev); 2499 struct i40e_pf *pf = np->vsi->back; 2500 u16 swc_old = pf->sw_int_count; 2501 2502 netif_info(pf, hw, netdev, "interrupt test\n"); 2503 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2504 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2505 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2506 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2507 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2508 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2509 usleep_range(1000, 2000); 2510 *data = (swc_old == pf->sw_int_count); 2511 2512 return *data; 2513 } 2514 2515 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2516 { 2517 struct i40e_vf *vfs = pf->vf; 2518 int i; 2519 2520 for (i = 0; i < pf->num_alloc_vfs; i++) 2521 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2522 return true; 2523 return false; 2524 } 2525 2526 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2527 { 2528 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2529 } 2530 2531 static void i40e_diag_test(struct net_device *netdev, 2532 struct ethtool_test *eth_test, u64 *data) 2533 { 2534 struct i40e_netdev_priv *np = netdev_priv(netdev); 2535 bool if_running = netif_running(netdev); 2536 struct i40e_pf *pf = np->vsi->back; 2537 2538 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2539 /* Offline tests */ 2540 netif_info(pf, drv, netdev, "offline testing starting\n"); 2541 2542 set_bit(__I40E_TESTING, pf->state); 2543 2544 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2545 dev_warn(&pf->pdev->dev, 2546 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2547 data[I40E_ETH_TEST_REG] = 1; 2548 data[I40E_ETH_TEST_EEPROM] = 1; 2549 data[I40E_ETH_TEST_INTR] = 1; 2550 data[I40E_ETH_TEST_LINK] = 1; 2551 eth_test->flags |= ETH_TEST_FL_FAILED; 2552 clear_bit(__I40E_TESTING, pf->state); 2553 goto skip_ol_tests; 2554 } 2555 2556 /* If the device is online then take it offline */ 2557 if (if_running) 2558 /* indicate we're in test mode */ 2559 i40e_close(netdev); 2560 else 2561 /* This reset does not affect link - if it is 2562 * changed to a type of reset that does affect 2563 * link then the following link test would have 2564 * to be moved to before the reset 2565 */ 2566 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2567 2568 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2569 eth_test->flags |= ETH_TEST_FL_FAILED; 2570 2571 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2572 eth_test->flags |= ETH_TEST_FL_FAILED; 2573 2574 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2575 eth_test->flags |= ETH_TEST_FL_FAILED; 2576 2577 /* run reg test last, a reset is required after it */ 2578 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2579 eth_test->flags |= ETH_TEST_FL_FAILED; 2580 2581 clear_bit(__I40E_TESTING, pf->state); 2582 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2583 2584 if (if_running) 2585 i40e_open(netdev); 2586 } else { 2587 /* Online tests */ 2588 netif_info(pf, drv, netdev, "online testing starting\n"); 2589 2590 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2591 eth_test->flags |= ETH_TEST_FL_FAILED; 2592 2593 /* Offline only tests, not run in online; pass by default */ 2594 data[I40E_ETH_TEST_REG] = 0; 2595 data[I40E_ETH_TEST_EEPROM] = 0; 2596 data[I40E_ETH_TEST_INTR] = 0; 2597 } 2598 2599 skip_ol_tests: 2600 2601 netif_info(pf, drv, netdev, "testing finished\n"); 2602 } 2603 2604 static void i40e_get_wol(struct net_device *netdev, 2605 struct ethtool_wolinfo *wol) 2606 { 2607 struct i40e_netdev_priv *np = netdev_priv(netdev); 2608 struct i40e_pf *pf = np->vsi->back; 2609 struct i40e_hw *hw = &pf->hw; 2610 u16 wol_nvm_bits; 2611 2612 /* NVM bit on means WoL disabled for the port */ 2613 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2614 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2615 wol->supported = 0; 2616 wol->wolopts = 0; 2617 } else { 2618 wol->supported = WAKE_MAGIC; 2619 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2620 } 2621 } 2622 2623 /** 2624 * i40e_set_wol - set the WakeOnLAN configuration 2625 * @netdev: the netdev in question 2626 * @wol: the ethtool WoL setting data 2627 **/ 2628 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2629 { 2630 struct i40e_netdev_priv *np = netdev_priv(netdev); 2631 struct i40e_pf *pf = np->vsi->back; 2632 struct i40e_vsi *vsi = np->vsi; 2633 struct i40e_hw *hw = &pf->hw; 2634 u16 wol_nvm_bits; 2635 2636 /* WoL not supported if this isn't the controlling PF on the port */ 2637 if (hw->partition_id != 1) { 2638 i40e_partition_setting_complaint(pf); 2639 return -EOPNOTSUPP; 2640 } 2641 2642 if (vsi != pf->vsi[pf->lan_vsi]) 2643 return -EOPNOTSUPP; 2644 2645 /* NVM bit on means WoL disabled for the port */ 2646 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2647 if (BIT(hw->port) & wol_nvm_bits) 2648 return -EOPNOTSUPP; 2649 2650 /* only magic packet is supported */ 2651 if (wol->wolopts & ~WAKE_MAGIC) 2652 return -EOPNOTSUPP; 2653 2654 /* is this a new value? */ 2655 if (pf->wol_en != !!wol->wolopts) { 2656 pf->wol_en = !!wol->wolopts; 2657 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2658 } 2659 2660 return 0; 2661 } 2662 2663 static int i40e_set_phys_id(struct net_device *netdev, 2664 enum ethtool_phys_id_state state) 2665 { 2666 struct i40e_netdev_priv *np = netdev_priv(netdev); 2667 i40e_status ret = 0; 2668 struct i40e_pf *pf = np->vsi->back; 2669 struct i40e_hw *hw = &pf->hw; 2670 int blink_freq = 2; 2671 u16 temp_status; 2672 2673 switch (state) { 2674 case ETHTOOL_ID_ACTIVE: 2675 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2676 pf->led_status = i40e_led_get(hw); 2677 } else { 2678 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2679 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2680 NULL); 2681 ret = i40e_led_get_phy(hw, &temp_status, 2682 &pf->phy_led_val); 2683 pf->led_status = temp_status; 2684 } 2685 return blink_freq; 2686 case ETHTOOL_ID_ON: 2687 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2688 i40e_led_set(hw, 0xf, false); 2689 else 2690 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2691 break; 2692 case ETHTOOL_ID_OFF: 2693 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2694 i40e_led_set(hw, 0x0, false); 2695 else 2696 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2697 break; 2698 case ETHTOOL_ID_INACTIVE: 2699 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2700 i40e_led_set(hw, pf->led_status, false); 2701 } else { 2702 ret = i40e_led_set_phy(hw, false, pf->led_status, 2703 (pf->phy_led_val | 2704 I40E_PHY_LED_MODE_ORIG)); 2705 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2706 i40e_aq_set_phy_debug(hw, 0, NULL); 2707 } 2708 break; 2709 default: 2710 break; 2711 } 2712 if (ret) 2713 return -ENOENT; 2714 else 2715 return 0; 2716 } 2717 2718 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2719 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2720 * 125us (8000 interrupts per second) == ITR(62) 2721 */ 2722 2723 /** 2724 * __i40e_get_coalesce - get per-queue coalesce settings 2725 * @netdev: the netdev to check 2726 * @ec: ethtool coalesce data structure 2727 * @queue: which queue to pick 2728 * 2729 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2730 * are per queue. If queue is <0 then we default to queue 0 as the 2731 * representative value. 2732 **/ 2733 static int __i40e_get_coalesce(struct net_device *netdev, 2734 struct ethtool_coalesce *ec, 2735 int queue) 2736 { 2737 struct i40e_netdev_priv *np = netdev_priv(netdev); 2738 struct i40e_ring *rx_ring, *tx_ring; 2739 struct i40e_vsi *vsi = np->vsi; 2740 2741 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2742 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2743 2744 /* rx and tx usecs has per queue value. If user doesn't specify the 2745 * queue, return queue 0's value to represent. 2746 */ 2747 if (queue < 0) 2748 queue = 0; 2749 else if (queue >= vsi->num_queue_pairs) 2750 return -EINVAL; 2751 2752 rx_ring = vsi->rx_rings[queue]; 2753 tx_ring = vsi->tx_rings[queue]; 2754 2755 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2756 ec->use_adaptive_rx_coalesce = 1; 2757 2758 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2759 ec->use_adaptive_tx_coalesce = 1; 2760 2761 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2762 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2763 2764 /* we use the _usecs_high to store/set the interrupt rate limit 2765 * that the hardware supports, that almost but not quite 2766 * fits the original intent of the ethtool variable, 2767 * the rx_coalesce_usecs_high limits total interrupts 2768 * per second from both tx/rx sources. 2769 */ 2770 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2771 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2772 2773 return 0; 2774 } 2775 2776 /** 2777 * i40e_get_coalesce - get a netdev's coalesce settings 2778 * @netdev: the netdev to check 2779 * @ec: ethtool coalesce data structure 2780 * 2781 * Gets the coalesce settings for a particular netdev. Note that if user has 2782 * modified per-queue settings, this only guarantees to represent queue 0. See 2783 * __i40e_get_coalesce for more details. 2784 **/ 2785 static int i40e_get_coalesce(struct net_device *netdev, 2786 struct ethtool_coalesce *ec) 2787 { 2788 return __i40e_get_coalesce(netdev, ec, -1); 2789 } 2790 2791 /** 2792 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2793 * @netdev: netdev structure 2794 * @ec: ethtool's coalesce settings 2795 * @queue: the particular queue to read 2796 * 2797 * Will read a specific queue's coalesce settings 2798 **/ 2799 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2800 struct ethtool_coalesce *ec) 2801 { 2802 return __i40e_get_coalesce(netdev, ec, queue); 2803 } 2804 2805 /** 2806 * i40e_set_itr_per_queue - set ITR values for specific queue 2807 * @vsi: the VSI to set values for 2808 * @ec: coalesce settings from ethtool 2809 * @queue: the queue to modify 2810 * 2811 * Change the ITR settings for a specific queue. 2812 **/ 2813 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2814 struct ethtool_coalesce *ec, 2815 int queue) 2816 { 2817 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2818 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2819 struct i40e_pf *pf = vsi->back; 2820 struct i40e_hw *hw = &pf->hw; 2821 struct i40e_q_vector *q_vector; 2822 u16 intrl; 2823 2824 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2825 2826 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2827 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2828 2829 if (ec->use_adaptive_rx_coalesce) 2830 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2831 else 2832 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2833 2834 if (ec->use_adaptive_tx_coalesce) 2835 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2836 else 2837 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2838 2839 q_vector = rx_ring->q_vector; 2840 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2841 2842 q_vector = tx_ring->q_vector; 2843 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2844 2845 /* The interrupt handler itself will take care of programming 2846 * the Tx and Rx ITR values based on the values we have entered 2847 * into the q_vector, no need to write the values now. 2848 */ 2849 2850 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2851 i40e_flush(hw); 2852 } 2853 2854 /** 2855 * __i40e_set_coalesce - set coalesce settings for particular queue 2856 * @netdev: the netdev to change 2857 * @ec: ethtool coalesce settings 2858 * @queue: the queue to change 2859 * 2860 * Sets the coalesce settings for a particular queue. 2861 **/ 2862 static int __i40e_set_coalesce(struct net_device *netdev, 2863 struct ethtool_coalesce *ec, 2864 int queue) 2865 { 2866 struct i40e_netdev_priv *np = netdev_priv(netdev); 2867 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 2868 struct i40e_vsi *vsi = np->vsi; 2869 struct i40e_pf *pf = vsi->back; 2870 int i; 2871 2872 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2873 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2874 2875 if (queue < 0) { 2876 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 2877 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 2878 } else if (queue < vsi->num_queue_pairs) { 2879 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 2880 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 2881 } else { 2882 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2883 vsi->num_queue_pairs - 1); 2884 return -EINVAL; 2885 } 2886 2887 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 2888 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 2889 2890 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2891 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2892 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2893 return -EINVAL; 2894 } 2895 2896 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2897 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 2898 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 2899 return -EINVAL; 2900 } 2901 2902 if (ec->rx_coalesce_usecs != cur_rx_itr && 2903 ec->use_adaptive_rx_coalesce) { 2904 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 2905 return -EINVAL; 2906 } 2907 2908 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 2909 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2910 return -EINVAL; 2911 } 2912 2913 if (ec->tx_coalesce_usecs != cur_tx_itr && 2914 ec->use_adaptive_tx_coalesce) { 2915 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 2916 return -EINVAL; 2917 } 2918 2919 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 2920 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2921 return -EINVAL; 2922 } 2923 2924 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 2925 ec->rx_coalesce_usecs = I40E_MIN_ITR; 2926 2927 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 2928 ec->tx_coalesce_usecs = I40E_MIN_ITR; 2929 2930 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 2931 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 2932 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 2933 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 2934 vsi->int_rate_limit); 2935 } 2936 2937 /* rx and tx usecs has per queue value. If user doesn't specify the 2938 * queue, apply to all queues. 2939 */ 2940 if (queue < 0) { 2941 for (i = 0; i < vsi->num_queue_pairs; i++) 2942 i40e_set_itr_per_queue(vsi, ec, i); 2943 } else { 2944 i40e_set_itr_per_queue(vsi, ec, queue); 2945 } 2946 2947 return 0; 2948 } 2949 2950 /** 2951 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2952 * @netdev: the netdev to change 2953 * @ec: ethtool coalesce settings 2954 * 2955 * This will set each queue to the same coalesce settings. 2956 **/ 2957 static int i40e_set_coalesce(struct net_device *netdev, 2958 struct ethtool_coalesce *ec) 2959 { 2960 return __i40e_set_coalesce(netdev, ec, -1); 2961 } 2962 2963 /** 2964 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 2965 * @netdev: the netdev to change 2966 * @ec: ethtool's coalesce settings 2967 * @queue: the queue to change 2968 * 2969 * Sets the specified queue's coalesce settings. 2970 **/ 2971 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 2972 struct ethtool_coalesce *ec) 2973 { 2974 return __i40e_set_coalesce(netdev, ec, queue); 2975 } 2976 2977 /** 2978 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 2979 * @pf: pointer to the physical function struct 2980 * @cmd: ethtool rxnfc command 2981 * 2982 * Returns Success if the flow is supported, else Invalid Input. 2983 **/ 2984 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 2985 { 2986 struct i40e_hw *hw = &pf->hw; 2987 u8 flow_pctype = 0; 2988 u64 i_set = 0; 2989 2990 cmd->data = 0; 2991 2992 switch (cmd->flow_type) { 2993 case TCP_V4_FLOW: 2994 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 2995 break; 2996 case UDP_V4_FLOW: 2997 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 2998 break; 2999 case TCP_V6_FLOW: 3000 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3001 break; 3002 case UDP_V6_FLOW: 3003 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3004 break; 3005 case SCTP_V4_FLOW: 3006 case AH_ESP_V4_FLOW: 3007 case AH_V4_FLOW: 3008 case ESP_V4_FLOW: 3009 case IPV4_FLOW: 3010 case SCTP_V6_FLOW: 3011 case AH_ESP_V6_FLOW: 3012 case AH_V6_FLOW: 3013 case ESP_V6_FLOW: 3014 case IPV6_FLOW: 3015 /* Default is src/dest for IP, no matter the L4 hashing */ 3016 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3017 break; 3018 default: 3019 return -EINVAL; 3020 } 3021 3022 /* Read flow based hash input set register */ 3023 if (flow_pctype) { 3024 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3025 flow_pctype)) | 3026 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3027 flow_pctype)) << 32); 3028 } 3029 3030 /* Process bits of hash input set */ 3031 if (i_set) { 3032 if (i_set & I40E_L4_SRC_MASK) 3033 cmd->data |= RXH_L4_B_0_1; 3034 if (i_set & I40E_L4_DST_MASK) 3035 cmd->data |= RXH_L4_B_2_3; 3036 3037 if (cmd->flow_type == TCP_V4_FLOW || 3038 cmd->flow_type == UDP_V4_FLOW) { 3039 if (i_set & I40E_L3_SRC_MASK) 3040 cmd->data |= RXH_IP_SRC; 3041 if (i_set & I40E_L3_DST_MASK) 3042 cmd->data |= RXH_IP_DST; 3043 } else if (cmd->flow_type == TCP_V6_FLOW || 3044 cmd->flow_type == UDP_V6_FLOW) { 3045 if (i_set & I40E_L3_V6_SRC_MASK) 3046 cmd->data |= RXH_IP_SRC; 3047 if (i_set & I40E_L3_V6_DST_MASK) 3048 cmd->data |= RXH_IP_DST; 3049 } 3050 } 3051 3052 return 0; 3053 } 3054 3055 /** 3056 * i40e_check_mask - Check whether a mask field is set 3057 * @mask: the full mask value 3058 * @field: mask of the field to check 3059 * 3060 * If the given mask is fully set, return positive value. If the mask for the 3061 * field is fully unset, return zero. Otherwise return a negative error code. 3062 **/ 3063 static int i40e_check_mask(u64 mask, u64 field) 3064 { 3065 u64 value = mask & field; 3066 3067 if (value == field) 3068 return 1; 3069 else if (!value) 3070 return 0; 3071 else 3072 return -1; 3073 } 3074 3075 /** 3076 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3077 * @fsp: pointer to rx flow specification 3078 * @data: pointer to userdef data structure for storage 3079 * 3080 * Read the user-defined data and deconstruct the value into a structure. No 3081 * other code should read the user-defined data, so as to ensure that every 3082 * place consistently reads the value correctly. 3083 * 3084 * The user-defined field is a 64bit Big Endian format value, which we 3085 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3086 * be defined starting from the highest bits, while small bit field values 3087 * shall be defined starting from the lowest bits. 3088 * 3089 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3090 * and the filter should be rejected. The data structure will always be 3091 * modified even if FLOW_EXT is not set. 3092 * 3093 **/ 3094 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3095 struct i40e_rx_flow_userdef *data) 3096 { 3097 u64 value, mask; 3098 int valid; 3099 3100 /* Zero memory first so it's always consistent. */ 3101 memset(data, 0, sizeof(*data)); 3102 3103 if (!(fsp->flow_type & FLOW_EXT)) 3104 return 0; 3105 3106 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3107 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3108 3109 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3110 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3111 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3112 3113 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3114 if (valid < 0) { 3115 return -EINVAL; 3116 } else if (valid) { 3117 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3118 data->flex_offset = 3119 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3120 data->flex_filter = true; 3121 } 3122 3123 return 0; 3124 } 3125 3126 /** 3127 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3128 * @fsp: pointer to rx_flow specification 3129 * @data: pointer to return userdef data 3130 * 3131 * Reads the userdef data structure and properly fills in the user defined 3132 * fields of the rx_flow_spec. 3133 **/ 3134 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3135 struct i40e_rx_flow_userdef *data) 3136 { 3137 u64 value = 0, mask = 0; 3138 3139 if (data->flex_filter) { 3140 value |= data->flex_word; 3141 value |= (u64)data->flex_offset << 16; 3142 mask |= I40E_USERDEF_FLEX_FILTER; 3143 } 3144 3145 if (value || mask) 3146 fsp->flow_type |= FLOW_EXT; 3147 3148 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3149 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3150 } 3151 3152 /** 3153 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3154 * @pf: Pointer to the physical function struct 3155 * @cmd: The command to get or set Rx flow classification rules 3156 * @rule_locs: Array of used rule locations 3157 * 3158 * This function populates both the total and actual rule count of 3159 * the ethtool flow classification command 3160 * 3161 * Returns 0 on success or -EMSGSIZE if entry not found 3162 **/ 3163 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3164 struct ethtool_rxnfc *cmd, 3165 u32 *rule_locs) 3166 { 3167 struct i40e_fdir_filter *rule; 3168 struct hlist_node *node2; 3169 int cnt = 0; 3170 3171 /* report total rule count */ 3172 cmd->data = i40e_get_fd_cnt_all(pf); 3173 3174 hlist_for_each_entry_safe(rule, node2, 3175 &pf->fdir_filter_list, fdir_node) { 3176 if (cnt == cmd->rule_cnt) 3177 return -EMSGSIZE; 3178 3179 rule_locs[cnt] = rule->fd_id; 3180 cnt++; 3181 } 3182 3183 cmd->rule_cnt = cnt; 3184 3185 return 0; 3186 } 3187 3188 /** 3189 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3190 * @pf: Pointer to the physical function struct 3191 * @cmd: The command to get or set Rx flow classification rules 3192 * 3193 * This function looks up a filter based on the Rx flow classification 3194 * command and fills the flow spec info for it if found 3195 * 3196 * Returns 0 on success or -EINVAL if filter not found 3197 **/ 3198 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3199 struct ethtool_rxnfc *cmd) 3200 { 3201 struct ethtool_rx_flow_spec *fsp = 3202 (struct ethtool_rx_flow_spec *)&cmd->fs; 3203 struct i40e_rx_flow_userdef userdef = {0}; 3204 struct i40e_fdir_filter *rule = NULL; 3205 struct hlist_node *node2; 3206 u64 input_set; 3207 u16 index; 3208 3209 hlist_for_each_entry_safe(rule, node2, 3210 &pf->fdir_filter_list, fdir_node) { 3211 if (fsp->location <= rule->fd_id) 3212 break; 3213 } 3214 3215 if (!rule || fsp->location != rule->fd_id) 3216 return -EINVAL; 3217 3218 fsp->flow_type = rule->flow_type; 3219 if (fsp->flow_type == IP_USER_FLOW) { 3220 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3221 fsp->h_u.usr_ip4_spec.proto = 0; 3222 fsp->m_u.usr_ip4_spec.proto = 0; 3223 } 3224 3225 /* Reverse the src and dest notion, since the HW views them from 3226 * Tx perspective where as the user expects it from Rx filter view. 3227 */ 3228 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3229 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3230 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3231 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3232 3233 switch (rule->flow_type) { 3234 case SCTP_V4_FLOW: 3235 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3236 break; 3237 case TCP_V4_FLOW: 3238 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3239 break; 3240 case UDP_V4_FLOW: 3241 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3242 break; 3243 case IP_USER_FLOW: 3244 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3245 break; 3246 default: 3247 /* If we have stored a filter with a flow type not listed here 3248 * it is almost certainly a driver bug. WARN(), and then 3249 * assign the input_set as if all fields are enabled to avoid 3250 * reading unassigned memory. 3251 */ 3252 WARN(1, "Missing input set index for flow_type %d\n", 3253 rule->flow_type); 3254 input_set = 0xFFFFFFFFFFFFFFFFULL; 3255 goto no_input_set; 3256 } 3257 3258 input_set = i40e_read_fd_input_set(pf, index); 3259 3260 no_input_set: 3261 if (input_set & I40E_L3_SRC_MASK) 3262 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3263 3264 if (input_set & I40E_L3_DST_MASK) 3265 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3266 3267 if (input_set & I40E_L4_SRC_MASK) 3268 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3269 3270 if (input_set & I40E_L4_DST_MASK) 3271 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3272 3273 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3274 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3275 else 3276 fsp->ring_cookie = rule->q_index; 3277 3278 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3279 struct i40e_vsi *vsi; 3280 3281 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3282 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3283 /* VFs are zero-indexed by the driver, but ethtool 3284 * expects them to be one-indexed, so add one here 3285 */ 3286 u64 ring_vf = vsi->vf_id + 1; 3287 3288 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3289 fsp->ring_cookie |= ring_vf; 3290 } 3291 } 3292 3293 if (rule->flex_filter) { 3294 userdef.flex_filter = true; 3295 userdef.flex_word = be16_to_cpu(rule->flex_word); 3296 userdef.flex_offset = rule->flex_offset; 3297 } 3298 3299 i40e_fill_rx_flow_user_data(fsp, &userdef); 3300 3301 return 0; 3302 } 3303 3304 /** 3305 * i40e_get_rxnfc - command to get RX flow classification rules 3306 * @netdev: network interface device structure 3307 * @cmd: ethtool rxnfc command 3308 * @rule_locs: pointer to store rule data 3309 * 3310 * Returns Success if the command is supported. 3311 **/ 3312 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3313 u32 *rule_locs) 3314 { 3315 struct i40e_netdev_priv *np = netdev_priv(netdev); 3316 struct i40e_vsi *vsi = np->vsi; 3317 struct i40e_pf *pf = vsi->back; 3318 int ret = -EOPNOTSUPP; 3319 3320 switch (cmd->cmd) { 3321 case ETHTOOL_GRXRINGS: 3322 cmd->data = vsi->rss_size; 3323 ret = 0; 3324 break; 3325 case ETHTOOL_GRXFH: 3326 ret = i40e_get_rss_hash_opts(pf, cmd); 3327 break; 3328 case ETHTOOL_GRXCLSRLCNT: 3329 cmd->rule_cnt = pf->fdir_pf_active_filters; 3330 /* report total rule count */ 3331 cmd->data = i40e_get_fd_cnt_all(pf); 3332 ret = 0; 3333 break; 3334 case ETHTOOL_GRXCLSRULE: 3335 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3336 break; 3337 case ETHTOOL_GRXCLSRLALL: 3338 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3339 break; 3340 default: 3341 break; 3342 } 3343 3344 return ret; 3345 } 3346 3347 /** 3348 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3349 * @nfc: pointer to user request 3350 * @i_setc: bits currently set 3351 * 3352 * Returns value of bits to be set per user request 3353 **/ 3354 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 3355 { 3356 u64 i_set = i_setc; 3357 u64 src_l3 = 0, dst_l3 = 0; 3358 3359 if (nfc->data & RXH_L4_B_0_1) 3360 i_set |= I40E_L4_SRC_MASK; 3361 else 3362 i_set &= ~I40E_L4_SRC_MASK; 3363 if (nfc->data & RXH_L4_B_2_3) 3364 i_set |= I40E_L4_DST_MASK; 3365 else 3366 i_set &= ~I40E_L4_DST_MASK; 3367 3368 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3369 src_l3 = I40E_L3_V6_SRC_MASK; 3370 dst_l3 = I40E_L3_V6_DST_MASK; 3371 } else if (nfc->flow_type == TCP_V4_FLOW || 3372 nfc->flow_type == UDP_V4_FLOW) { 3373 src_l3 = I40E_L3_SRC_MASK; 3374 dst_l3 = I40E_L3_DST_MASK; 3375 } else { 3376 /* Any other flow type are not supported here */ 3377 return i_set; 3378 } 3379 3380 if (nfc->data & RXH_IP_SRC) 3381 i_set |= src_l3; 3382 else 3383 i_set &= ~src_l3; 3384 if (nfc->data & RXH_IP_DST) 3385 i_set |= dst_l3; 3386 else 3387 i_set &= ~dst_l3; 3388 3389 return i_set; 3390 } 3391 3392 /** 3393 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3394 * @pf: pointer to the physical function struct 3395 * @nfc: ethtool rxnfc command 3396 * 3397 * Returns Success if the flow input set is supported. 3398 **/ 3399 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3400 { 3401 struct i40e_hw *hw = &pf->hw; 3402 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3403 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3404 u8 flow_pctype = 0; 3405 u64 i_set, i_setc; 3406 3407 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3408 dev_err(&pf->pdev->dev, 3409 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3410 return -EOPNOTSUPP; 3411 } 3412 3413 /* RSS does not support anything other than hashing 3414 * to queues on src and dst IPs and ports 3415 */ 3416 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3417 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3418 return -EINVAL; 3419 3420 switch (nfc->flow_type) { 3421 case TCP_V4_FLOW: 3422 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3423 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3424 hena |= 3425 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3426 break; 3427 case TCP_V6_FLOW: 3428 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3429 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3430 hena |= 3431 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3432 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3433 hena |= 3434 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 3435 break; 3436 case UDP_V4_FLOW: 3437 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3438 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3439 hena |= 3440 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 3441 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 3442 3443 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3444 break; 3445 case UDP_V6_FLOW: 3446 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3447 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3448 hena |= 3449 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 3450 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 3451 3452 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3453 break; 3454 case AH_ESP_V4_FLOW: 3455 case AH_V4_FLOW: 3456 case ESP_V4_FLOW: 3457 case SCTP_V4_FLOW: 3458 if ((nfc->data & RXH_L4_B_0_1) || 3459 (nfc->data & RXH_L4_B_2_3)) 3460 return -EINVAL; 3461 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3462 break; 3463 case AH_ESP_V6_FLOW: 3464 case AH_V6_FLOW: 3465 case ESP_V6_FLOW: 3466 case SCTP_V6_FLOW: 3467 if ((nfc->data & RXH_L4_B_0_1) || 3468 (nfc->data & RXH_L4_B_2_3)) 3469 return -EINVAL; 3470 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3471 break; 3472 case IPV4_FLOW: 3473 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3474 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3475 break; 3476 case IPV6_FLOW: 3477 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3478 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3479 break; 3480 default: 3481 return -EINVAL; 3482 } 3483 3484 if (flow_pctype) { 3485 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3486 flow_pctype)) | 3487 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3488 flow_pctype)) << 32); 3489 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 3490 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 3491 (u32)i_set); 3492 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 3493 (u32)(i_set >> 32)); 3494 hena |= BIT_ULL(flow_pctype); 3495 } 3496 3497 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3498 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3499 i40e_flush(hw); 3500 3501 return 0; 3502 } 3503 3504 /** 3505 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3506 * @vsi: Pointer to the targeted VSI 3507 * @input: The filter to update or NULL to indicate deletion 3508 * @sw_idx: Software index to the filter 3509 * @cmd: The command to get or set Rx flow classification rules 3510 * 3511 * This function updates (or deletes) a Flow Director entry from 3512 * the hlist of the corresponding PF 3513 * 3514 * Returns 0 on success 3515 **/ 3516 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3517 struct i40e_fdir_filter *input, 3518 u16 sw_idx, 3519 struct ethtool_rxnfc *cmd) 3520 { 3521 struct i40e_fdir_filter *rule, *parent; 3522 struct i40e_pf *pf = vsi->back; 3523 struct hlist_node *node2; 3524 int err = -EINVAL; 3525 3526 parent = NULL; 3527 rule = NULL; 3528 3529 hlist_for_each_entry_safe(rule, node2, 3530 &pf->fdir_filter_list, fdir_node) { 3531 /* hash found, or no matching entry */ 3532 if (rule->fd_id >= sw_idx) 3533 break; 3534 parent = rule; 3535 } 3536 3537 /* if there is an old rule occupying our place remove it */ 3538 if (rule && (rule->fd_id == sw_idx)) { 3539 /* Remove this rule, since we're either deleting it, or 3540 * replacing it. 3541 */ 3542 err = i40e_add_del_fdir(vsi, rule, false); 3543 hlist_del(&rule->fdir_node); 3544 kfree(rule); 3545 pf->fdir_pf_active_filters--; 3546 } 3547 3548 /* If we weren't given an input, this is a delete, so just return the 3549 * error code indicating if there was an entry at the requested slot 3550 */ 3551 if (!input) 3552 return err; 3553 3554 /* Otherwise, install the new rule as requested */ 3555 INIT_HLIST_NODE(&input->fdir_node); 3556 3557 /* add filter to the list */ 3558 if (parent) 3559 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3560 else 3561 hlist_add_head(&input->fdir_node, 3562 &pf->fdir_filter_list); 3563 3564 /* update counts */ 3565 pf->fdir_pf_active_filters++; 3566 3567 return 0; 3568 } 3569 3570 /** 3571 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3572 * @pf: pointer to PF structure 3573 * 3574 * This function searches the list of filters and determines which FLX_PIT 3575 * entries are still required. It will prune any entries which are no longer 3576 * in use after the deletion. 3577 **/ 3578 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3579 { 3580 struct i40e_flex_pit *entry, *tmp; 3581 struct i40e_fdir_filter *rule; 3582 3583 /* First, we'll check the l3 table */ 3584 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3585 bool found = false; 3586 3587 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3588 if (rule->flow_type != IP_USER_FLOW) 3589 continue; 3590 if (rule->flex_filter && 3591 rule->flex_offset == entry->src_offset) { 3592 found = true; 3593 break; 3594 } 3595 } 3596 3597 /* If we didn't find the filter, then we can prune this entry 3598 * from the list. 3599 */ 3600 if (!found) { 3601 list_del(&entry->list); 3602 kfree(entry); 3603 } 3604 } 3605 3606 /* Followed by the L4 table */ 3607 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3608 bool found = false; 3609 3610 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3611 /* Skip this filter if it's L3, since we already 3612 * checked those in the above loop 3613 */ 3614 if (rule->flow_type == IP_USER_FLOW) 3615 continue; 3616 if (rule->flex_filter && 3617 rule->flex_offset == entry->src_offset) { 3618 found = true; 3619 break; 3620 } 3621 } 3622 3623 /* If we didn't find the filter, then we can prune this entry 3624 * from the list. 3625 */ 3626 if (!found) { 3627 list_del(&entry->list); 3628 kfree(entry); 3629 } 3630 } 3631 } 3632 3633 /** 3634 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3635 * @vsi: Pointer to the targeted VSI 3636 * @cmd: The command to get or set Rx flow classification rules 3637 * 3638 * The function removes a Flow Director filter entry from the 3639 * hlist of the corresponding PF 3640 * 3641 * Returns 0 on success 3642 */ 3643 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3644 struct ethtool_rxnfc *cmd) 3645 { 3646 struct ethtool_rx_flow_spec *fsp = 3647 (struct ethtool_rx_flow_spec *)&cmd->fs; 3648 struct i40e_pf *pf = vsi->back; 3649 int ret = 0; 3650 3651 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3652 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3653 return -EBUSY; 3654 3655 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3656 return -EBUSY; 3657 3658 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3659 3660 i40e_prune_flex_pit_list(pf); 3661 3662 i40e_fdir_check_and_reenable(pf); 3663 return ret; 3664 } 3665 3666 /** 3667 * i40e_unused_pit_index - Find an unused PIT index for given list 3668 * @pf: the PF data structure 3669 * 3670 * Find the first unused flexible PIT index entry. We search both the L3 and 3671 * L4 flexible PIT lists so that the returned index is unique and unused by 3672 * either currently programmed L3 or L4 filters. We use a bit field as storage 3673 * to track which indexes are already used. 3674 **/ 3675 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3676 { 3677 unsigned long available_index = 0xFF; 3678 struct i40e_flex_pit *entry; 3679 3680 /* We need to make sure that the new index isn't in use by either L3 3681 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3682 * L4 to use the same index. 3683 */ 3684 3685 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3686 clear_bit(entry->pit_index, &available_index); 3687 3688 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3689 clear_bit(entry->pit_index, &available_index); 3690 3691 return find_first_bit(&available_index, 8); 3692 } 3693 3694 /** 3695 * i40e_find_flex_offset - Find an existing flex src_offset 3696 * @flex_pit_list: L3 or L4 flex PIT list 3697 * @src_offset: new src_offset to find 3698 * 3699 * Searches the flex_pit_list for an existing offset. If no offset is 3700 * currently programmed, then this will return an ERR_PTR if there is no space 3701 * to add a new offset, otherwise it returns NULL. 3702 **/ 3703 static 3704 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3705 u16 src_offset) 3706 { 3707 struct i40e_flex_pit *entry; 3708 int size = 0; 3709 3710 /* Search for the src_offset first. If we find a matching entry 3711 * already programmed, we can simply re-use it. 3712 */ 3713 list_for_each_entry(entry, flex_pit_list, list) { 3714 size++; 3715 if (entry->src_offset == src_offset) 3716 return entry; 3717 } 3718 3719 /* If we haven't found an entry yet, then the provided src offset has 3720 * not yet been programmed. We will program the src offset later on, 3721 * but we need to indicate whether there is enough space to do so 3722 * here. We'll make use of ERR_PTR for this purpose. 3723 */ 3724 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3725 return ERR_PTR(-ENOSPC); 3726 3727 return NULL; 3728 } 3729 3730 /** 3731 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3732 * @flex_pit_list: L3 or L4 flex PIT list 3733 * @src_offset: new src_offset to add 3734 * @pit_index: the PIT index to program 3735 * 3736 * This function programs the new src_offset to the list. It is expected that 3737 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3738 * that this offset is not programmed, and that the list has enough space to 3739 * store another offset. 3740 * 3741 * Returns 0 on success, and negative value on error. 3742 **/ 3743 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3744 u16 src_offset, 3745 u8 pit_index) 3746 { 3747 struct i40e_flex_pit *new_pit, *entry; 3748 3749 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3750 if (!new_pit) 3751 return -ENOMEM; 3752 3753 new_pit->src_offset = src_offset; 3754 new_pit->pit_index = pit_index; 3755 3756 /* We need to insert this item such that the list is sorted by 3757 * src_offset in ascending order. 3758 */ 3759 list_for_each_entry(entry, flex_pit_list, list) { 3760 if (new_pit->src_offset < entry->src_offset) { 3761 list_add_tail(&new_pit->list, &entry->list); 3762 return 0; 3763 } 3764 3765 /* If we found an entry with our offset already programmed we 3766 * can simply return here, after freeing the memory. However, 3767 * if the pit_index does not match we need to report an error. 3768 */ 3769 if (new_pit->src_offset == entry->src_offset) { 3770 int err = 0; 3771 3772 /* If the PIT index is not the same we can't re-use 3773 * the entry, so we must report an error. 3774 */ 3775 if (new_pit->pit_index != entry->pit_index) 3776 err = -EINVAL; 3777 3778 kfree(new_pit); 3779 return err; 3780 } 3781 } 3782 3783 /* If we reached here, then we haven't yet added the item. This means 3784 * that we should add the item at the end of the list. 3785 */ 3786 list_add_tail(&new_pit->list, flex_pit_list); 3787 return 0; 3788 } 3789 3790 /** 3791 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3792 * @pf: Pointer to the PF structure 3793 * @flex_pit_list: list of flexible src offsets in use 3794 * @flex_pit_start: index to first entry for this section of the table 3795 * 3796 * In order to handle flexible data, the hardware uses a table of values 3797 * called the FLX_PIT table. This table is used to indicate which sections of 3798 * the input correspond to what PIT index values. Unfortunately, hardware is 3799 * very restrictive about programming this table. Entries must be ordered by 3800 * src_offset in ascending order, without duplicates. Additionally, unused 3801 * entries must be set to the unused index value, and must have valid size and 3802 * length according to the src_offset ordering. 3803 * 3804 * This function will reprogram the FLX_PIT register from a book-keeping 3805 * structure that we guarantee is already ordered correctly, and has no more 3806 * than 3 entries. 3807 * 3808 * To make things easier, we only support flexible values of one word length, 3809 * rather than allowing variable length flexible values. 3810 **/ 3811 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 3812 struct list_head *flex_pit_list, 3813 int flex_pit_start) 3814 { 3815 struct i40e_flex_pit *entry = NULL; 3816 u16 last_offset = 0; 3817 int i = 0, j = 0; 3818 3819 /* First, loop over the list of flex PIT entries, and reprogram the 3820 * registers. 3821 */ 3822 list_for_each_entry(entry, flex_pit_list, list) { 3823 /* We have to be careful when programming values for the 3824 * largest SRC_OFFSET value. It is possible that adding 3825 * additional empty values at the end would overflow the space 3826 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 3827 * we check here and add the empty values prior to adding the 3828 * largest value. 3829 * 3830 * To determine this, we will use a loop from i+1 to 3, which 3831 * will determine whether the unused entries would have valid 3832 * SRC_OFFSET. Note that there cannot be extra entries past 3833 * this value, because the only valid values would have been 3834 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 3835 * have been added to the list in the first place. 3836 */ 3837 for (j = i + 1; j < 3; j++) { 3838 u16 offset = entry->src_offset + j; 3839 int index = flex_pit_start + i; 3840 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3841 1, 3842 offset - 3); 3843 3844 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 3845 i40e_write_rx_ctl(&pf->hw, 3846 I40E_PRTQF_FLX_PIT(index), 3847 value); 3848 i++; 3849 } 3850 } 3851 3852 /* Now, we can program the actual value into the table */ 3853 i40e_write_rx_ctl(&pf->hw, 3854 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3855 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 3856 1, 3857 entry->src_offset)); 3858 i++; 3859 } 3860 3861 /* In order to program the last entries in the table, we need to 3862 * determine the valid offset. If the list is empty, we'll just start 3863 * with 0. Otherwise, we'll start with the last item offset and add 1. 3864 * This ensures that all entries have valid sizes. If we don't do this 3865 * correctly, the hardware will disable flexible field parsing. 3866 */ 3867 if (!list_empty(flex_pit_list)) 3868 last_offset = list_prev_entry(entry, list)->src_offset + 1; 3869 3870 for (; i < 3; i++, last_offset++) { 3871 i40e_write_rx_ctl(&pf->hw, 3872 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3873 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3874 1, 3875 last_offset)); 3876 } 3877 } 3878 3879 /** 3880 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 3881 * @pf: pointer to the PF structure 3882 * 3883 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 3884 * internal helper function for implementation details. 3885 **/ 3886 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 3887 { 3888 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 3889 I40E_FLEX_PIT_IDX_START_L3); 3890 3891 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 3892 I40E_FLEX_PIT_IDX_START_L4); 3893 3894 /* We also need to program the L3 and L4 GLQF ORT register */ 3895 i40e_write_rx_ctl(&pf->hw, 3896 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 3897 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 3898 3, 1)); 3899 3900 i40e_write_rx_ctl(&pf->hw, 3901 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 3902 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 3903 3, 1)); 3904 } 3905 3906 /** 3907 * i40e_flow_str - Converts a flow_type into a human readable string 3908 * @fsp: the flow specification 3909 * 3910 * Currently only flow types we support are included here, and the string 3911 * value attempts to match what ethtool would use to configure this flow type. 3912 **/ 3913 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 3914 { 3915 switch (fsp->flow_type & ~FLOW_EXT) { 3916 case TCP_V4_FLOW: 3917 return "tcp4"; 3918 case UDP_V4_FLOW: 3919 return "udp4"; 3920 case SCTP_V4_FLOW: 3921 return "sctp4"; 3922 case IP_USER_FLOW: 3923 return "ip4"; 3924 default: 3925 return "unknown"; 3926 } 3927 } 3928 3929 /** 3930 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 3931 * @pit_index: PIT index to convert 3932 * 3933 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 3934 * of range. 3935 **/ 3936 static u64 i40e_pit_index_to_mask(int pit_index) 3937 { 3938 switch (pit_index) { 3939 case 0: 3940 return I40E_FLEX_50_MASK; 3941 case 1: 3942 return I40E_FLEX_51_MASK; 3943 case 2: 3944 return I40E_FLEX_52_MASK; 3945 case 3: 3946 return I40E_FLEX_53_MASK; 3947 case 4: 3948 return I40E_FLEX_54_MASK; 3949 case 5: 3950 return I40E_FLEX_55_MASK; 3951 case 6: 3952 return I40E_FLEX_56_MASK; 3953 case 7: 3954 return I40E_FLEX_57_MASK; 3955 default: 3956 return 0; 3957 } 3958 } 3959 3960 /** 3961 * i40e_print_input_set - Show changes between two input sets 3962 * @vsi: the vsi being configured 3963 * @old: the old input set 3964 * @new: the new input set 3965 * 3966 * Print the difference between old and new input sets by showing which series 3967 * of words are toggled on or off. Only displays the bits we actually support 3968 * changing. 3969 **/ 3970 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 3971 { 3972 struct i40e_pf *pf = vsi->back; 3973 bool old_value, new_value; 3974 int i; 3975 3976 old_value = !!(old & I40E_L3_SRC_MASK); 3977 new_value = !!(new & I40E_L3_SRC_MASK); 3978 if (old_value != new_value) 3979 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 3980 old_value ? "ON" : "OFF", 3981 new_value ? "ON" : "OFF"); 3982 3983 old_value = !!(old & I40E_L3_DST_MASK); 3984 new_value = !!(new & I40E_L3_DST_MASK); 3985 if (old_value != new_value) 3986 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 3987 old_value ? "ON" : "OFF", 3988 new_value ? "ON" : "OFF"); 3989 3990 old_value = !!(old & I40E_L4_SRC_MASK); 3991 new_value = !!(new & I40E_L4_SRC_MASK); 3992 if (old_value != new_value) 3993 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 3994 old_value ? "ON" : "OFF", 3995 new_value ? "ON" : "OFF"); 3996 3997 old_value = !!(old & I40E_L4_DST_MASK); 3998 new_value = !!(new & I40E_L4_DST_MASK); 3999 if (old_value != new_value) 4000 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4001 old_value ? "ON" : "OFF", 4002 new_value ? "ON" : "OFF"); 4003 4004 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4005 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4006 if (old_value != new_value) 4007 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4008 old_value ? "ON" : "OFF", 4009 new_value ? "ON" : "OFF"); 4010 4011 /* Show change of flexible filter entries */ 4012 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4013 u64 flex_mask = i40e_pit_index_to_mask(i); 4014 4015 old_value = !!(old & flex_mask); 4016 new_value = !!(new & flex_mask); 4017 if (old_value != new_value) 4018 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4019 i, 4020 old_value ? "ON" : "OFF", 4021 new_value ? "ON" : "OFF"); 4022 } 4023 4024 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4025 old); 4026 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4027 new); 4028 } 4029 4030 /** 4031 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4032 * @vsi: pointer to the targeted VSI 4033 * @fsp: pointer to Rx flow specification 4034 * @userdef: userdefined data from flow specification 4035 * 4036 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4037 * for partial matches exists with a few limitations. First, hardware only 4038 * supports masking by word boundary (2 bytes) and not per individual bit. 4039 * Second, hardware is limited to using one mask for a flow type and cannot 4040 * use a separate mask for each filter. 4041 * 4042 * To support these limitations, if we already have a configured filter for 4043 * the specified type, this function enforces that new filters of the type 4044 * match the configured input set. Otherwise, if we do not have a filter of 4045 * the specified type, we allow the input set to be updated to match the 4046 * desired filter. 4047 * 4048 * To help ensure that administrators understand why filters weren't displayed 4049 * as supported, we print a diagnostic message displaying how the input set 4050 * would change and warning to delete the preexisting filters if required. 4051 * 4052 * Returns 0 on successful input set match, and a negative return code on 4053 * failure. 4054 **/ 4055 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4056 struct ethtool_rx_flow_spec *fsp, 4057 struct i40e_rx_flow_userdef *userdef) 4058 { 4059 struct i40e_pf *pf = vsi->back; 4060 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4061 struct ethtool_usrip4_spec *usr_ip4_spec; 4062 u64 current_mask, new_mask; 4063 bool new_flex_offset = false; 4064 bool flex_l3 = false; 4065 u16 *fdir_filter_count; 4066 u16 index, src_offset = 0; 4067 u8 pit_index = 0; 4068 int err; 4069 4070 switch (fsp->flow_type & ~FLOW_EXT) { 4071 case SCTP_V4_FLOW: 4072 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4073 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4074 break; 4075 case TCP_V4_FLOW: 4076 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4077 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4078 break; 4079 case UDP_V4_FLOW: 4080 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4081 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4082 break; 4083 case IP_USER_FLOW: 4084 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4085 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4086 flex_l3 = true; 4087 break; 4088 default: 4089 return -EOPNOTSUPP; 4090 } 4091 4092 /* Read the current input set from register memory. */ 4093 current_mask = i40e_read_fd_input_set(pf, index); 4094 new_mask = current_mask; 4095 4096 /* Determine, if any, the required changes to the input set in order 4097 * to support the provided mask. 4098 * 4099 * Hardware only supports masking at word (2 byte) granularity and does 4100 * not support full bitwise masking. This implementation simplifies 4101 * even further and only supports fully enabled or fully disabled 4102 * masks for each field, even though we could split the ip4src and 4103 * ip4dst fields. 4104 */ 4105 switch (fsp->flow_type & ~FLOW_EXT) { 4106 case SCTP_V4_FLOW: 4107 new_mask &= ~I40E_VERIFY_TAG_MASK; 4108 fallthrough; 4109 case TCP_V4_FLOW: 4110 case UDP_V4_FLOW: 4111 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4112 4113 /* IPv4 source address */ 4114 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4115 new_mask |= I40E_L3_SRC_MASK; 4116 else if (!tcp_ip4_spec->ip4src) 4117 new_mask &= ~I40E_L3_SRC_MASK; 4118 else 4119 return -EOPNOTSUPP; 4120 4121 /* IPv4 destination address */ 4122 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4123 new_mask |= I40E_L3_DST_MASK; 4124 else if (!tcp_ip4_spec->ip4dst) 4125 new_mask &= ~I40E_L3_DST_MASK; 4126 else 4127 return -EOPNOTSUPP; 4128 4129 /* L4 source port */ 4130 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4131 new_mask |= I40E_L4_SRC_MASK; 4132 else if (!tcp_ip4_spec->psrc) 4133 new_mask &= ~I40E_L4_SRC_MASK; 4134 else 4135 return -EOPNOTSUPP; 4136 4137 /* L4 destination port */ 4138 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4139 new_mask |= I40E_L4_DST_MASK; 4140 else if (!tcp_ip4_spec->pdst) 4141 new_mask &= ~I40E_L4_DST_MASK; 4142 else 4143 return -EOPNOTSUPP; 4144 4145 /* Filtering on Type of Service is not supported. */ 4146 if (tcp_ip4_spec->tos) 4147 return -EOPNOTSUPP; 4148 4149 break; 4150 case IP_USER_FLOW: 4151 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4152 4153 /* IPv4 source address */ 4154 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4155 new_mask |= I40E_L3_SRC_MASK; 4156 else if (!usr_ip4_spec->ip4src) 4157 new_mask &= ~I40E_L3_SRC_MASK; 4158 else 4159 return -EOPNOTSUPP; 4160 4161 /* IPv4 destination address */ 4162 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4163 new_mask |= I40E_L3_DST_MASK; 4164 else if (!usr_ip4_spec->ip4dst) 4165 new_mask &= ~I40E_L3_DST_MASK; 4166 else 4167 return -EOPNOTSUPP; 4168 4169 /* First 4 bytes of L4 header */ 4170 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4171 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4172 else if (!usr_ip4_spec->l4_4_bytes) 4173 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4174 else 4175 return -EOPNOTSUPP; 4176 4177 /* Filtering on Type of Service is not supported. */ 4178 if (usr_ip4_spec->tos) 4179 return -EOPNOTSUPP; 4180 4181 /* Filtering on IP version is not supported */ 4182 if (usr_ip4_spec->ip_ver) 4183 return -EINVAL; 4184 4185 /* Filtering on L4 protocol is not supported */ 4186 if (usr_ip4_spec->proto) 4187 return -EINVAL; 4188 4189 break; 4190 default: 4191 return -EOPNOTSUPP; 4192 } 4193 4194 /* First, clear all flexible filter entries */ 4195 new_mask &= ~I40E_FLEX_INPUT_MASK; 4196 4197 /* If we have a flexible filter, try to add this offset to the correct 4198 * flexible filter PIT list. Once finished, we can update the mask. 4199 * If the src_offset changed, we will get a new mask value which will 4200 * trigger an input set change. 4201 */ 4202 if (userdef->flex_filter) { 4203 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4204 4205 /* Flexible offset must be even, since the flexible payload 4206 * must be aligned on 2-byte boundary. 4207 */ 4208 if (userdef->flex_offset & 0x1) { 4209 dev_warn(&pf->pdev->dev, 4210 "Flexible data offset must be 2-byte aligned\n"); 4211 return -EINVAL; 4212 } 4213 4214 src_offset = userdef->flex_offset >> 1; 4215 4216 /* FLX_PIT source offset value is only so large */ 4217 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4218 dev_warn(&pf->pdev->dev, 4219 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4220 return -EINVAL; 4221 } 4222 4223 /* See if this offset has already been programmed. If we get 4224 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4225 * if we get a NULL pointer, this means we will need to add 4226 * the offset. 4227 */ 4228 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4229 src_offset); 4230 if (IS_ERR(flex_pit)) 4231 return PTR_ERR(flex_pit); 4232 4233 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4234 * packet types, and thus we need to program both L3 and L4 4235 * flexible values. These must have identical flexible index, 4236 * as otherwise we can't correctly program the input set. So 4237 * we'll find both an L3 and L4 index and make sure they are 4238 * the same. 4239 */ 4240 if (flex_l3) { 4241 l3_flex_pit = 4242 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4243 src_offset); 4244 if (IS_ERR(l3_flex_pit)) 4245 return PTR_ERR(l3_flex_pit); 4246 4247 if (flex_pit) { 4248 /* If we already had a matching L4 entry, we 4249 * need to make sure that the L3 entry we 4250 * obtained uses the same index. 4251 */ 4252 if (l3_flex_pit) { 4253 if (l3_flex_pit->pit_index != 4254 flex_pit->pit_index) { 4255 return -EINVAL; 4256 } 4257 } else { 4258 new_flex_offset = true; 4259 } 4260 } else { 4261 flex_pit = l3_flex_pit; 4262 } 4263 } 4264 4265 /* If we didn't find an existing flex offset, we need to 4266 * program a new one. However, we don't immediately program it 4267 * here because we will wait to program until after we check 4268 * that it is safe to change the input set. 4269 */ 4270 if (!flex_pit) { 4271 new_flex_offset = true; 4272 pit_index = i40e_unused_pit_index(pf); 4273 } else { 4274 pit_index = flex_pit->pit_index; 4275 } 4276 4277 /* Update the mask with the new offset */ 4278 new_mask |= i40e_pit_index_to_mask(pit_index); 4279 } 4280 4281 /* If the mask and flexible filter offsets for this filter match the 4282 * currently programmed values we don't need any input set change, so 4283 * this filter is safe to install. 4284 */ 4285 if (new_mask == current_mask && !new_flex_offset) 4286 return 0; 4287 4288 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4289 i40e_flow_str(fsp)); 4290 i40e_print_input_set(vsi, current_mask, new_mask); 4291 if (new_flex_offset) { 4292 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4293 pit_index, src_offset); 4294 } 4295 4296 /* Hardware input sets are global across multiple ports, so even the 4297 * main port cannot change them when in MFP mode as this would impact 4298 * any filters on the other ports. 4299 */ 4300 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4301 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4302 return -EOPNOTSUPP; 4303 } 4304 4305 /* This filter requires us to update the input set. However, hardware 4306 * only supports one input set per flow type, and does not support 4307 * separate masks for each filter. This means that we can only support 4308 * a single mask for all filters of a specific type. 4309 * 4310 * If we have preexisting filters, they obviously depend on the 4311 * current programmed input set. Display a diagnostic message in this 4312 * case explaining why the filter could not be accepted. 4313 */ 4314 if (*fdir_filter_count) { 4315 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4316 i40e_flow_str(fsp), 4317 *fdir_filter_count); 4318 return -EOPNOTSUPP; 4319 } 4320 4321 i40e_write_fd_input_set(pf, index, new_mask); 4322 4323 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4324 * frames. If we're programming the input set for IPv4/Other, we also 4325 * need to program the IPv4/Fragmented input set. Since we don't have 4326 * separate support, we'll always assume and enforce that the two flow 4327 * types must have matching input sets. 4328 */ 4329 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4330 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4331 new_mask); 4332 4333 /* Add the new offset and update table, if necessary */ 4334 if (new_flex_offset) { 4335 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4336 pit_index); 4337 if (err) 4338 return err; 4339 4340 if (flex_l3) { 4341 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4342 src_offset, 4343 pit_index); 4344 if (err) 4345 return err; 4346 } 4347 4348 i40e_reprogram_flex_pit(pf); 4349 } 4350 4351 return 0; 4352 } 4353 4354 /** 4355 * i40e_match_fdir_filter - Return true of two filters match 4356 * @a: pointer to filter struct 4357 * @b: pointer to filter struct 4358 * 4359 * Returns true if the two filters match exactly the same criteria. I.e. they 4360 * match the same flow type and have the same parameters. We don't need to 4361 * check any input-set since all filters of the same flow type must use the 4362 * same input set. 4363 **/ 4364 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4365 struct i40e_fdir_filter *b) 4366 { 4367 /* The filters do not much if any of these criteria differ. */ 4368 if (a->dst_ip != b->dst_ip || 4369 a->src_ip != b->src_ip || 4370 a->dst_port != b->dst_port || 4371 a->src_port != b->src_port || 4372 a->flow_type != b->flow_type || 4373 a->ip4_proto != b->ip4_proto) 4374 return false; 4375 4376 return true; 4377 } 4378 4379 /** 4380 * i40e_disallow_matching_filters - Check that new filters differ 4381 * @vsi: pointer to the targeted VSI 4382 * @input: new filter to check 4383 * 4384 * Due to hardware limitations, it is not possible for two filters that match 4385 * similar criteria to be programmed at the same time. This is true for a few 4386 * reasons: 4387 * 4388 * (a) all filters matching a particular flow type must use the same input 4389 * set, that is they must match the same criteria. 4390 * (b) different flow types will never match the same packet, as the flow type 4391 * is decided by hardware before checking which rules apply. 4392 * (c) hardware has no way to distinguish which order filters apply in. 4393 * 4394 * Due to this, we can't really support using the location data to order 4395 * filters in the hardware parsing. It is technically possible for the user to 4396 * request two filters matching the same criteria but which select different 4397 * queues. In this case, rather than keep both filters in the list, we reject 4398 * the 2nd filter when the user requests adding it. 4399 * 4400 * This avoids needing to track location for programming the filter to 4401 * hardware, and ensures that we avoid some strange scenarios involving 4402 * deleting filters which match the same criteria. 4403 **/ 4404 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4405 struct i40e_fdir_filter *input) 4406 { 4407 struct i40e_pf *pf = vsi->back; 4408 struct i40e_fdir_filter *rule; 4409 struct hlist_node *node2; 4410 4411 /* Loop through every filter, and check that it doesn't match */ 4412 hlist_for_each_entry_safe(rule, node2, 4413 &pf->fdir_filter_list, fdir_node) { 4414 /* Don't check the filters match if they share the same fd_id, 4415 * since the new filter is actually just updating the target 4416 * of the old filter. 4417 */ 4418 if (rule->fd_id == input->fd_id) 4419 continue; 4420 4421 /* If any filters match, then print a warning message to the 4422 * kernel message buffer and bail out. 4423 */ 4424 if (i40e_match_fdir_filter(rule, input)) { 4425 dev_warn(&pf->pdev->dev, 4426 "Existing user defined filter %d already matches this flow.\n", 4427 rule->fd_id); 4428 return -EINVAL; 4429 } 4430 } 4431 4432 return 0; 4433 } 4434 4435 /** 4436 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4437 * @vsi: pointer to the targeted VSI 4438 * @cmd: command to get or set RX flow classification rules 4439 * 4440 * Add Flow Director filters for a specific flow spec based on their 4441 * protocol. Returns 0 if the filters were successfully added. 4442 **/ 4443 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4444 struct ethtool_rxnfc *cmd) 4445 { 4446 struct i40e_rx_flow_userdef userdef; 4447 struct ethtool_rx_flow_spec *fsp; 4448 struct i40e_fdir_filter *input; 4449 u16 dest_vsi = 0, q_index = 0; 4450 struct i40e_pf *pf; 4451 int ret = -EINVAL; 4452 u8 dest_ctl; 4453 4454 if (!vsi) 4455 return -EINVAL; 4456 pf = vsi->back; 4457 4458 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4459 return -EOPNOTSUPP; 4460 4461 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4462 return -ENOSPC; 4463 4464 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4465 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4466 return -EBUSY; 4467 4468 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4469 return -EBUSY; 4470 4471 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4472 4473 /* Parse the user-defined field */ 4474 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4475 return -EINVAL; 4476 4477 /* Extended MAC field is not supported */ 4478 if (fsp->flow_type & FLOW_MAC_EXT) 4479 return -EINVAL; 4480 4481 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4482 if (ret) 4483 return ret; 4484 4485 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4486 pf->hw.func_caps.fd_filters_guaranteed)) { 4487 return -EINVAL; 4488 } 4489 4490 /* ring_cookie is either the drop index, or is a mask of the queue 4491 * index and VF id we wish to target. 4492 */ 4493 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4494 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4495 } else { 4496 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4497 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4498 4499 if (!vf) { 4500 if (ring >= vsi->num_queue_pairs) 4501 return -EINVAL; 4502 dest_vsi = vsi->id; 4503 } else { 4504 /* VFs are zero-indexed, so we subtract one here */ 4505 vf--; 4506 4507 if (vf >= pf->num_alloc_vfs) 4508 return -EINVAL; 4509 if (ring >= pf->vf[vf].num_queue_pairs) 4510 return -EINVAL; 4511 dest_vsi = pf->vf[vf].lan_vsi_id; 4512 } 4513 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4514 q_index = ring; 4515 } 4516 4517 input = kzalloc(sizeof(*input), GFP_KERNEL); 4518 4519 if (!input) 4520 return -ENOMEM; 4521 4522 input->fd_id = fsp->location; 4523 input->q_index = q_index; 4524 input->dest_vsi = dest_vsi; 4525 input->dest_ctl = dest_ctl; 4526 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4527 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4528 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4529 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4530 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4531 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto; 4532 4533 /* Reverse the src and dest notion, since the HW expects them to be from 4534 * Tx perspective where as the input from user is from Rx filter view. 4535 */ 4536 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4537 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4538 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4539 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4540 4541 if (userdef.flex_filter) { 4542 input->flex_filter = true; 4543 input->flex_word = cpu_to_be16(userdef.flex_word); 4544 input->flex_offset = userdef.flex_offset; 4545 } 4546 4547 /* Avoid programming two filters with identical match criteria. */ 4548 ret = i40e_disallow_matching_filters(vsi, input); 4549 if (ret) 4550 goto free_filter_memory; 4551 4552 /* Add the input filter to the fdir_input_list, possibly replacing 4553 * a previous filter. Do not free the input structure after adding it 4554 * to the list as this would cause a use-after-free bug. 4555 */ 4556 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4557 ret = i40e_add_del_fdir(vsi, input, true); 4558 if (ret) 4559 goto remove_sw_rule; 4560 return 0; 4561 4562 remove_sw_rule: 4563 hlist_del(&input->fdir_node); 4564 pf->fdir_pf_active_filters--; 4565 free_filter_memory: 4566 kfree(input); 4567 return ret; 4568 } 4569 4570 /** 4571 * i40e_set_rxnfc - command to set RX flow classification rules 4572 * @netdev: network interface device structure 4573 * @cmd: ethtool rxnfc command 4574 * 4575 * Returns Success if the command is supported. 4576 **/ 4577 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4578 { 4579 struct i40e_netdev_priv *np = netdev_priv(netdev); 4580 struct i40e_vsi *vsi = np->vsi; 4581 struct i40e_pf *pf = vsi->back; 4582 int ret = -EOPNOTSUPP; 4583 4584 switch (cmd->cmd) { 4585 case ETHTOOL_SRXFH: 4586 ret = i40e_set_rss_hash_opt(pf, cmd); 4587 break; 4588 case ETHTOOL_SRXCLSRLINS: 4589 ret = i40e_add_fdir_ethtool(vsi, cmd); 4590 break; 4591 case ETHTOOL_SRXCLSRLDEL: 4592 ret = i40e_del_fdir_entry(vsi, cmd); 4593 break; 4594 default: 4595 break; 4596 } 4597 4598 return ret; 4599 } 4600 4601 /** 4602 * i40e_max_channels - get Max number of combined channels supported 4603 * @vsi: vsi pointer 4604 **/ 4605 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4606 { 4607 /* TODO: This code assumes DCB and FD is disabled for now. */ 4608 return vsi->alloc_queue_pairs; 4609 } 4610 4611 /** 4612 * i40e_get_channels - Get the current channels enabled and max supported etc. 4613 * @dev: network interface device structure 4614 * @ch: ethtool channels structure 4615 * 4616 * We don't support separate tx and rx queues as channels. The other count 4617 * represents how many queues are being used for control. max_combined counts 4618 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4619 * q_vectors since we support a lot more queue pairs than q_vectors. 4620 **/ 4621 static void i40e_get_channels(struct net_device *dev, 4622 struct ethtool_channels *ch) 4623 { 4624 struct i40e_netdev_priv *np = netdev_priv(dev); 4625 struct i40e_vsi *vsi = np->vsi; 4626 struct i40e_pf *pf = vsi->back; 4627 4628 /* report maximum channels */ 4629 ch->max_combined = i40e_max_channels(vsi); 4630 4631 /* report info for other vector */ 4632 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4633 ch->max_other = ch->other_count; 4634 4635 /* Note: This code assumes DCB is disabled for now. */ 4636 ch->combined_count = vsi->num_queue_pairs; 4637 } 4638 4639 /** 4640 * i40e_set_channels - Set the new channels count. 4641 * @dev: network interface device structure 4642 * @ch: ethtool channels structure 4643 * 4644 * The new channels count may not be the same as requested by the user 4645 * since it gets rounded down to a power of 2 value. 4646 **/ 4647 static int i40e_set_channels(struct net_device *dev, 4648 struct ethtool_channels *ch) 4649 { 4650 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4651 struct i40e_netdev_priv *np = netdev_priv(dev); 4652 unsigned int count = ch->combined_count; 4653 struct i40e_vsi *vsi = np->vsi; 4654 struct i40e_pf *pf = vsi->back; 4655 struct i40e_fdir_filter *rule; 4656 struct hlist_node *node2; 4657 int new_count; 4658 int err = 0; 4659 4660 /* We do not support setting channels for any other VSI at present */ 4661 if (vsi->type != I40E_VSI_MAIN) 4662 return -EINVAL; 4663 4664 /* We do not support setting channels via ethtool when TCs are 4665 * configured through mqprio 4666 */ 4667 if (pf->flags & I40E_FLAG_TC_MQPRIO) 4668 return -EINVAL; 4669 4670 /* verify they are not requesting separate vectors */ 4671 if (!count || ch->rx_count || ch->tx_count) 4672 return -EINVAL; 4673 4674 /* verify other_count has not changed */ 4675 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 4676 return -EINVAL; 4677 4678 /* verify the number of channels does not exceed hardware limits */ 4679 if (count > i40e_max_channels(vsi)) 4680 return -EINVAL; 4681 4682 /* verify that the number of channels does not invalidate any current 4683 * flow director rules 4684 */ 4685 hlist_for_each_entry_safe(rule, node2, 4686 &pf->fdir_filter_list, fdir_node) { 4687 if (rule->dest_ctl != drop && count <= rule->q_index) { 4688 dev_warn(&pf->pdev->dev, 4689 "Existing user defined filter %d assigns flow to queue %d\n", 4690 rule->fd_id, rule->q_index); 4691 err = -EINVAL; 4692 } 4693 } 4694 4695 if (err) { 4696 dev_err(&pf->pdev->dev, 4697 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 4698 count); 4699 return err; 4700 } 4701 4702 /* update feature limits from largest to smallest supported values */ 4703 /* TODO: Flow director limit, DCB etc */ 4704 4705 /* use rss_reconfig to rebuild with new queue count and update traffic 4706 * class queue mapping 4707 */ 4708 new_count = i40e_reconfig_rss_queues(pf, count); 4709 if (new_count > 0) 4710 return 0; 4711 else 4712 return -EINVAL; 4713 } 4714 4715 /** 4716 * i40e_get_rxfh_key_size - get the RSS hash key size 4717 * @netdev: network interface device structure 4718 * 4719 * Returns the table size. 4720 **/ 4721 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 4722 { 4723 return I40E_HKEY_ARRAY_SIZE; 4724 } 4725 4726 /** 4727 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 4728 * @netdev: network interface device structure 4729 * 4730 * Returns the table size. 4731 **/ 4732 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 4733 { 4734 return I40E_HLUT_ARRAY_SIZE; 4735 } 4736 4737 /** 4738 * i40e_get_rxfh - get the rx flow hash indirection table 4739 * @netdev: network interface device structure 4740 * @indir: indirection table 4741 * @key: hash key 4742 * @hfunc: hash function 4743 * 4744 * Reads the indirection table directly from the hardware. Returns 0 on 4745 * success. 4746 **/ 4747 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 4748 u8 *hfunc) 4749 { 4750 struct i40e_netdev_priv *np = netdev_priv(netdev); 4751 struct i40e_vsi *vsi = np->vsi; 4752 u8 *lut, *seed = NULL; 4753 int ret; 4754 u16 i; 4755 4756 if (hfunc) 4757 *hfunc = ETH_RSS_HASH_TOP; 4758 4759 if (!indir) 4760 return 0; 4761 4762 seed = key; 4763 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 4764 if (!lut) 4765 return -ENOMEM; 4766 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 4767 if (ret) 4768 goto out; 4769 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 4770 indir[i] = (u32)(lut[i]); 4771 4772 out: 4773 kfree(lut); 4774 4775 return ret; 4776 } 4777 4778 /** 4779 * i40e_set_rxfh - set the rx flow hash indirection table 4780 * @netdev: network interface device structure 4781 * @indir: indirection table 4782 * @key: hash key 4783 * @hfunc: hash function to use 4784 * 4785 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 4786 * returns 0 after programming the table. 4787 **/ 4788 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 4789 const u8 *key, const u8 hfunc) 4790 { 4791 struct i40e_netdev_priv *np = netdev_priv(netdev); 4792 struct i40e_vsi *vsi = np->vsi; 4793 struct i40e_pf *pf = vsi->back; 4794 u8 *seed = NULL; 4795 u16 i; 4796 4797 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 4798 return -EOPNOTSUPP; 4799 4800 if (key) { 4801 if (!vsi->rss_hkey_user) { 4802 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 4803 GFP_KERNEL); 4804 if (!vsi->rss_hkey_user) 4805 return -ENOMEM; 4806 } 4807 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 4808 seed = vsi->rss_hkey_user; 4809 } 4810 if (!vsi->rss_lut_user) { 4811 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 4812 if (!vsi->rss_lut_user) 4813 return -ENOMEM; 4814 } 4815 4816 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 4817 if (indir) 4818 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 4819 vsi->rss_lut_user[i] = (u8)(indir[i]); 4820 else 4821 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 4822 vsi->rss_size); 4823 4824 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 4825 I40E_HLUT_ARRAY_SIZE); 4826 } 4827 4828 /** 4829 * i40e_get_priv_flags - report device private flags 4830 * @dev: network interface device structure 4831 * 4832 * The get string set count and the string set should be matched for each 4833 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 4834 * array. 4835 * 4836 * Returns a u32 bitmap of flags. 4837 **/ 4838 static u32 i40e_get_priv_flags(struct net_device *dev) 4839 { 4840 struct i40e_netdev_priv *np = netdev_priv(dev); 4841 struct i40e_vsi *vsi = np->vsi; 4842 struct i40e_pf *pf = vsi->back; 4843 u32 i, j, ret_flags = 0; 4844 4845 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 4846 const struct i40e_priv_flags *priv_flags; 4847 4848 priv_flags = &i40e_gstrings_priv_flags[i]; 4849 4850 if (priv_flags->flag & pf->flags) 4851 ret_flags |= BIT(i); 4852 } 4853 4854 if (pf->hw.pf_id != 0) 4855 return ret_flags; 4856 4857 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 4858 const struct i40e_priv_flags *priv_flags; 4859 4860 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 4861 4862 if (priv_flags->flag & pf->flags) 4863 ret_flags |= BIT(i + j); 4864 } 4865 4866 return ret_flags; 4867 } 4868 4869 /** 4870 * i40e_set_priv_flags - set private flags 4871 * @dev: network interface device structure 4872 * @flags: bit flags to be set 4873 **/ 4874 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 4875 { 4876 struct i40e_netdev_priv *np = netdev_priv(dev); 4877 u64 orig_flags, new_flags, changed_flags; 4878 enum i40e_admin_queue_err adq_err; 4879 struct i40e_vsi *vsi = np->vsi; 4880 struct i40e_pf *pf = vsi->back; 4881 bool is_reset_needed; 4882 i40e_status status; 4883 u32 i, j; 4884 4885 orig_flags = READ_ONCE(pf->flags); 4886 new_flags = orig_flags; 4887 4888 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 4889 const struct i40e_priv_flags *priv_flags; 4890 4891 priv_flags = &i40e_gstrings_priv_flags[i]; 4892 4893 if (flags & BIT(i)) 4894 new_flags |= priv_flags->flag; 4895 else 4896 new_flags &= ~(priv_flags->flag); 4897 4898 /* If this is a read-only flag, it can't be changed */ 4899 if (priv_flags->read_only && 4900 ((orig_flags ^ new_flags) & ~BIT(i))) 4901 return -EOPNOTSUPP; 4902 } 4903 4904 if (pf->hw.pf_id != 0) 4905 goto flags_complete; 4906 4907 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 4908 const struct i40e_priv_flags *priv_flags; 4909 4910 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 4911 4912 if (flags & BIT(i + j)) 4913 new_flags |= priv_flags->flag; 4914 else 4915 new_flags &= ~(priv_flags->flag); 4916 4917 /* If this is a read-only flag, it can't be changed */ 4918 if (priv_flags->read_only && 4919 ((orig_flags ^ new_flags) & ~BIT(i))) 4920 return -EOPNOTSUPP; 4921 } 4922 4923 flags_complete: 4924 changed_flags = orig_flags ^ new_flags; 4925 4926 is_reset_needed = !!(changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 4927 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED | 4928 I40E_FLAG_DISABLE_FW_LLDP)); 4929 4930 /* Before we finalize any flag changes, we need to perform some 4931 * checks to ensure that the changes are supported and safe. 4932 */ 4933 4934 /* ATR eviction is not supported on all devices */ 4935 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 4936 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 4937 return -EOPNOTSUPP; 4938 4939 /* If the driver detected FW LLDP was disabled on init, this flag could 4940 * be set, however we do not support _changing_ the flag: 4941 * - on XL710 if NPAR is enabled or FW API version < 1.7 4942 * - on X722 with FW API version < 1.6 4943 * There are situations where older FW versions/NPAR enabled PFs could 4944 * disable LLDP, however we _must_ not allow the user to enable/disable 4945 * LLDP with this flag on unsupported FW versions. 4946 */ 4947 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 4948 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 4949 dev_warn(&pf->pdev->dev, 4950 "Device does not support changing FW LLDP\n"); 4951 return -EOPNOTSUPP; 4952 } 4953 } 4954 4955 if (changed_flags & I40E_FLAG_RS_FEC && 4956 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 4957 pf->hw.device_id != I40E_DEV_ID_25G_B) { 4958 dev_warn(&pf->pdev->dev, 4959 "Device does not support changing FEC configuration\n"); 4960 return -EOPNOTSUPP; 4961 } 4962 4963 if (changed_flags & I40E_FLAG_BASE_R_FEC && 4964 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 4965 pf->hw.device_id != I40E_DEV_ID_25G_B && 4966 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 4967 dev_warn(&pf->pdev->dev, 4968 "Device does not support changing FEC configuration\n"); 4969 return -EOPNOTSUPP; 4970 } 4971 4972 /* Process any additional changes needed as a result of flag changes. 4973 * The changed_flags value reflects the list of bits that were 4974 * changed in the code above. 4975 */ 4976 4977 /* Flush current ATR settings if ATR was disabled */ 4978 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 4979 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 4980 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 4981 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 4982 } 4983 4984 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 4985 u16 sw_flags = 0, valid_flags = 0; 4986 int ret; 4987 4988 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 4989 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 4990 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 4991 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 4992 0, NULL); 4993 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 4994 dev_info(&pf->pdev->dev, 4995 "couldn't set switch config bits, err %s aq_err %s\n", 4996 i40e_stat_str(&pf->hw, ret), 4997 i40e_aq_str(&pf->hw, 4998 pf->hw.aq.asq_last_status)); 4999 /* not a fatal problem, just keep going */ 5000 } 5001 } 5002 5003 if ((changed_flags & I40E_FLAG_RS_FEC) || 5004 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5005 u8 fec_cfg = 0; 5006 5007 if (new_flags & I40E_FLAG_RS_FEC && 5008 new_flags & I40E_FLAG_BASE_R_FEC) { 5009 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5010 } else if (new_flags & I40E_FLAG_RS_FEC) { 5011 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5012 I40E_AQ_SET_FEC_ABILITY_RS); 5013 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5014 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5015 I40E_AQ_SET_FEC_ABILITY_KR); 5016 } 5017 if (i40e_set_fec_cfg(dev, fec_cfg)) 5018 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5019 } 5020 5021 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5022 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5023 dev_err(&pf->pdev->dev, 5024 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5025 return -EOPNOTSUPP; 5026 } 5027 5028 if ((changed_flags & new_flags & 5029 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5030 (new_flags & I40E_FLAG_MFP_ENABLED)) 5031 dev_warn(&pf->pdev->dev, 5032 "Turning on link-down-on-close flag may affect other partitions\n"); 5033 5034 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5035 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5036 struct i40e_dcbx_config *dcbcfg; 5037 5038 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5039 i40e_aq_set_dcb_parameters(&pf->hw, true, NULL); 5040 /* reset local_dcbx_config to default */ 5041 dcbcfg = &pf->hw.local_dcbx_config; 5042 dcbcfg->etscfg.willing = 1; 5043 dcbcfg->etscfg.maxtcs = 0; 5044 dcbcfg->etscfg.tcbwtable[0] = 100; 5045 for (i = 1; i < I40E_MAX_TRAFFIC_CLASS; i++) 5046 dcbcfg->etscfg.tcbwtable[i] = 0; 5047 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 5048 dcbcfg->etscfg.prioritytable[i] = 0; 5049 dcbcfg->etscfg.tsatable[0] = I40E_IEEE_TSA_ETS; 5050 dcbcfg->pfc.willing = 1; 5051 dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS; 5052 } else { 5053 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5054 if (status) { 5055 adq_err = pf->hw.aq.asq_last_status; 5056 switch (adq_err) { 5057 case I40E_AQ_RC_EEXIST: 5058 dev_warn(&pf->pdev->dev, 5059 "FW LLDP agent is already running\n"); 5060 is_reset_needed = false; 5061 break; 5062 case I40E_AQ_RC_EPERM: 5063 dev_warn(&pf->pdev->dev, 5064 "Device configuration forbids SW from starting the LLDP agent.\n"); 5065 return -EINVAL; 5066 default: 5067 dev_warn(&pf->pdev->dev, 5068 "Starting FW LLDP agent failed: error: %s, %s\n", 5069 i40e_stat_str(&pf->hw, 5070 status), 5071 i40e_aq_str(&pf->hw, 5072 adq_err)); 5073 return -EINVAL; 5074 } 5075 } 5076 } 5077 } 5078 5079 /* Now that we've checked to ensure that the new flags are valid, load 5080 * them into place. Since we only modify flags either (a) during 5081 * initialization or (b) while holding the RTNL lock, we don't need 5082 * anything fancy here. 5083 */ 5084 pf->flags = new_flags; 5085 5086 /* Issue reset to cause things to take effect, as additional bits 5087 * are added we will need to create a mask of bits requiring reset 5088 */ 5089 if (is_reset_needed) 5090 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 5091 5092 return 0; 5093 } 5094 5095 /** 5096 * i40e_get_module_info - get (Q)SFP+ module type info 5097 * @netdev: network interface device structure 5098 * @modinfo: module EEPROM size and layout information structure 5099 **/ 5100 static int i40e_get_module_info(struct net_device *netdev, 5101 struct ethtool_modinfo *modinfo) 5102 { 5103 struct i40e_netdev_priv *np = netdev_priv(netdev); 5104 struct i40e_vsi *vsi = np->vsi; 5105 struct i40e_pf *pf = vsi->back; 5106 struct i40e_hw *hw = &pf->hw; 5107 u32 sff8472_comp = 0; 5108 u32 sff8472_swap = 0; 5109 u32 sff8636_rev = 0; 5110 i40e_status status; 5111 u32 type = 0; 5112 5113 /* Check if firmware supports reading module EEPROM. */ 5114 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5115 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5116 return -EINVAL; 5117 } 5118 5119 status = i40e_update_link_info(hw); 5120 if (status) 5121 return -EIO; 5122 5123 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5124 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5125 return -EINVAL; 5126 } 5127 5128 type = hw->phy.link_info.module_type[0]; 5129 5130 switch (type) { 5131 case I40E_MODULE_TYPE_SFP: 5132 status = i40e_aq_get_phy_register(hw, 5133 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5134 I40E_I2C_EEPROM_DEV_ADDR, true, 5135 I40E_MODULE_SFF_8472_COMP, 5136 &sff8472_comp, NULL); 5137 if (status) 5138 return -EIO; 5139 5140 status = i40e_aq_get_phy_register(hw, 5141 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5142 I40E_I2C_EEPROM_DEV_ADDR, true, 5143 I40E_MODULE_SFF_8472_SWAP, 5144 &sff8472_swap, NULL); 5145 if (status) 5146 return -EIO; 5147 5148 /* Check if the module requires address swap to access 5149 * the other EEPROM memory page. 5150 */ 5151 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5152 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5153 modinfo->type = ETH_MODULE_SFF_8079; 5154 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5155 } else if (sff8472_comp == 0x00) { 5156 /* Module is not SFF-8472 compliant */ 5157 modinfo->type = ETH_MODULE_SFF_8079; 5158 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5159 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5160 /* Module is SFF-8472 compliant but doesn't implement 5161 * Digital Diagnostic Monitoring (DDM). 5162 */ 5163 modinfo->type = ETH_MODULE_SFF_8079; 5164 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5165 } else { 5166 modinfo->type = ETH_MODULE_SFF_8472; 5167 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5168 } 5169 break; 5170 case I40E_MODULE_TYPE_QSFP_PLUS: 5171 /* Read from memory page 0. */ 5172 status = i40e_aq_get_phy_register(hw, 5173 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5174 0, true, 5175 I40E_MODULE_REVISION_ADDR, 5176 &sff8636_rev, NULL); 5177 if (status) 5178 return -EIO; 5179 /* Determine revision compliance byte */ 5180 if (sff8636_rev > 0x02) { 5181 /* Module is SFF-8636 compliant */ 5182 modinfo->type = ETH_MODULE_SFF_8636; 5183 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5184 } else { 5185 modinfo->type = ETH_MODULE_SFF_8436; 5186 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5187 } 5188 break; 5189 case I40E_MODULE_TYPE_QSFP28: 5190 modinfo->type = ETH_MODULE_SFF_8636; 5191 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5192 break; 5193 default: 5194 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5195 return -EINVAL; 5196 } 5197 return 0; 5198 } 5199 5200 /** 5201 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5202 * @netdev: network interface device structure 5203 * @ee: EEPROM dump request structure 5204 * @data: buffer to be filled with EEPROM contents 5205 **/ 5206 static int i40e_get_module_eeprom(struct net_device *netdev, 5207 struct ethtool_eeprom *ee, 5208 u8 *data) 5209 { 5210 struct i40e_netdev_priv *np = netdev_priv(netdev); 5211 struct i40e_vsi *vsi = np->vsi; 5212 struct i40e_pf *pf = vsi->back; 5213 struct i40e_hw *hw = &pf->hw; 5214 bool is_sfp = false; 5215 i40e_status status; 5216 u32 value = 0; 5217 int i; 5218 5219 if (!ee || !ee->len || !data) 5220 return -EINVAL; 5221 5222 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5223 is_sfp = true; 5224 5225 for (i = 0; i < ee->len; i++) { 5226 u32 offset = i + ee->offset; 5227 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5228 5229 /* Check if we need to access the other memory page */ 5230 if (is_sfp) { 5231 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5232 offset -= ETH_MODULE_SFF_8079_LEN; 5233 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5234 } 5235 } else { 5236 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5237 /* Compute memory page number and offset. */ 5238 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5239 addr++; 5240 } 5241 } 5242 5243 status = i40e_aq_get_phy_register(hw, 5244 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5245 true, addr, offset, &value, NULL); 5246 if (status) 5247 return -EIO; 5248 data[i] = value; 5249 } 5250 return 0; 5251 } 5252 5253 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5254 { 5255 return -EOPNOTSUPP; 5256 } 5257 5258 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5259 { 5260 return -EOPNOTSUPP; 5261 } 5262 5263 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5264 .get_drvinfo = i40e_get_drvinfo, 5265 .set_eeprom = i40e_set_eeprom, 5266 .get_eeprom_len = i40e_get_eeprom_len, 5267 .get_eeprom = i40e_get_eeprom, 5268 }; 5269 5270 static const struct ethtool_ops i40e_ethtool_ops = { 5271 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5272 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5273 ETHTOOL_COALESCE_USE_ADAPTIVE | 5274 ETHTOOL_COALESCE_RX_USECS_HIGH | 5275 ETHTOOL_COALESCE_TX_USECS_HIGH, 5276 .get_drvinfo = i40e_get_drvinfo, 5277 .get_regs_len = i40e_get_regs_len, 5278 .get_regs = i40e_get_regs, 5279 .nway_reset = i40e_nway_reset, 5280 .get_link = ethtool_op_get_link, 5281 .get_wol = i40e_get_wol, 5282 .set_wol = i40e_set_wol, 5283 .set_eeprom = i40e_set_eeprom, 5284 .get_eeprom_len = i40e_get_eeprom_len, 5285 .get_eeprom = i40e_get_eeprom, 5286 .get_ringparam = i40e_get_ringparam, 5287 .set_ringparam = i40e_set_ringparam, 5288 .get_pauseparam = i40e_get_pauseparam, 5289 .set_pauseparam = i40e_set_pauseparam, 5290 .get_msglevel = i40e_get_msglevel, 5291 .set_msglevel = i40e_set_msglevel, 5292 .get_rxnfc = i40e_get_rxnfc, 5293 .set_rxnfc = i40e_set_rxnfc, 5294 .self_test = i40e_diag_test, 5295 .get_strings = i40e_get_strings, 5296 .get_eee = i40e_get_eee, 5297 .set_eee = i40e_set_eee, 5298 .set_phys_id = i40e_set_phys_id, 5299 .get_sset_count = i40e_get_sset_count, 5300 .get_ethtool_stats = i40e_get_ethtool_stats, 5301 .get_coalesce = i40e_get_coalesce, 5302 .set_coalesce = i40e_set_coalesce, 5303 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5304 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5305 .get_rxfh = i40e_get_rxfh, 5306 .set_rxfh = i40e_set_rxfh, 5307 .get_channels = i40e_get_channels, 5308 .set_channels = i40e_set_channels, 5309 .get_module_info = i40e_get_module_info, 5310 .get_module_eeprom = i40e_get_module_eeprom, 5311 .get_ts_info = i40e_get_ts_info, 5312 .get_priv_flags = i40e_get_priv_flags, 5313 .set_priv_flags = i40e_set_priv_flags, 5314 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5315 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5316 .get_link_ksettings = i40e_get_link_ksettings, 5317 .set_link_ksettings = i40e_set_link_ksettings, 5318 .get_fecparam = i40e_get_fec_param, 5319 .set_fecparam = i40e_set_fec_param, 5320 .flash_device = i40e_ddp_flash, 5321 }; 5322 5323 void i40e_set_ethtool_ops(struct net_device *netdev) 5324 { 5325 struct i40e_netdev_priv *np = netdev_priv(netdev); 5326 struct i40e_pf *pf = np->vsi->back; 5327 5328 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5329 netdev->ethtool_ops = &i40e_ethtool_ops; 5330 else 5331 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5332 } 5333